Basics·10 min read·Checked November 2026

Whatnot terms explained: what is a raid, a raid train, sudden death, a form filler, and a mod?

A raid on Whatnot is when a seller ends their live show and sends themselves and their viewers straight into another seller's live show. A raid train is a community-run chain of shows where each seller raids the next, sudden death is an auction setting that ends at 00:01 with no extra time for late bids, a form filler is slang for someone who enters a Buyer Appreciation Giveaway through Whatnot's free entry form instead of buying, and a mod is a moderator the seller approves to help keep a show's chat in order. Here is how each one works, when sellers use it, and the rules that apply, as of November 2026.

Written and fact-checked by an active Whatnot breaker on the BreakTemplate team. Updated November 1, 2026. How we check facts

What is a raid on Whatnot?

A raid is an official Whatnot feature that ends your show and sends you and your viewers directly into another seller's live show. Whatnot frames it as a way to keep your audience engaged, support other sellers, and grow your communities together.

How a raid works

When you start a raid, your viewers see a notice that it is about to begin, then everyone moves to the show you picked. The seller you raid gets a public chat message along the lines of "yourfavoriteseller is raiding with a party of 1." You can raid three ways:

  • App: tap More on the right of your show, choose Raid, select a seller who is live now or let Whatnot choose, then tap Raid Now and Continue.
  • Web: click More, then Seller Tools, then Start Raid, enter the username of a seller who is live, review the show, and click Raid Now.
  • Chat: type /raid @username.

Viewers are never locked in. They can leave before the raid starts or leave the raided show at any time.

When sellers use it

Raids happen at the end of a show. Sellers raid friends or sellers in the same category, and if you have no one in mind, Whatnot can pick a live seller for you.

Etiquette

  • Receiving a raid: Whatnot notes that sellers usually thank the raider and hype the incoming crowd. A quick recap of what you are selling helps new viewers stay.
  • Sending a raid: send viewers somewhere relevant. A sports card audience dropped into an unrelated category tends to leave.

Common mistakes

  • Raiding too early: a raid automatically ends your live stream. Finish your last auction and any giveaway first.
  • Picking someone who is not live: you can only raid a seller who is currently live.

What is a raid train on Whatnot?

A raid train is a lineup of back-to-back shows where each seller goes live in a set time slot and raids the next seller in line when that slot ends, so one audience rides from show to show. Whatnot documents the raid feature but has no official raid train feature or raid train rules, so each train runs on rules set by its organizer.

How it works

An organizer collects sign-ups and publishes a schedule. Each seller hosts a normal show in their slot, then raids the next seller on the list, who should already be live when the raid arrives. Some groups use sign-up sheets or third-party scheduling tools, none of which are part of Whatnot, and many trains are themed: giveaway trains, charity trains, or trains built to support small sellers. New sellers join to borrow an audience they do not have yet, and the whole train works only if every seller is reliable.

Rules that still apply

A raid train does not change Whatnot's policies. Each show in the lineup is a normal show, so the giveaway and card break rules apply in full. One that catches giveaway trains: sellers cannot add entry requirements beyond what Whatnot's giveaway tool offers, such as requiring entrants to follow other sellers or social accounts.

Common mistakes

  • Going live late: if the next seller is not live, the raid has nowhere to land and the audience scatters.
  • Raiding the wrong seller: check the schedule before you tap Raid Now.
  • Running long: the train depends on every slot ending on time.

What is sudden death on Whatnot?

Sudden death is an optional setting on a Whatnot auction that ends the auction at 00:01 for the final bidder without extending time for late bids. Buyers see a skull icon next to the timer so they know no extra seconds are coming.

How it differs from a standard auction

Every auction has a starting bid, an auction time, and a counter bid time. In a standard auction, once fewer than 10 seconds remain, each new bid resets the clock to the counter bid time. In sudden death that reset never happens: the timer runs out and the highest bid at that moment wins. Either way, a started auction cannot be canceled, bids are binding, and if nobody bids the item does not sell.

When sellers use it

Sudden death keeps a fast show moving, so sellers use it for lower-priced items and quick runs where a predictable end time matters more than the last dollar. For a high-value card, a standard auction gives bidders more room to respond.

Etiquette and common mistakes

  • Say it out loud: announce sudden death before you start, since some viewers miss the icon.
  • Starting too low: the auction cannot be stopped once it starts, so set the starting bid at the lowest price you would accept.
  • Buyers waiting for the buzzer: a custom maximum bid placed early is safer than a last-second tap, since Whatnot will bid up to it automatically.

What is a form filler on Whatnot?

A form filler is community slang for a viewer who enters a Buyer Appreciation Giveaway (BAG) through Whatnot's free web entry form instead of buying something in the show. The term is not Whatnot's, and under Whatnot's rules a form entrant has exactly the same right to win, and to the same prize, as a buyer.

How it works

A BAG thanks people who buy during your show: to qualify, a buyer must purchase after the giveaway is created. The exception is free entry. Users in the United States and Canada can enter by filling out a web form on the giveaway details page, Whatnot's alternative method of entry, which exists because requiring a purchase to enter a giveaway is illegal in many places.

Rules sellers must follow

  • You cannot deny a winner or downgrade, withhold, or change the prize because the winner did not buy anything.
  • You cannot require a minimum spend to qualify, or run a BAG without the free entry method.
  • You must ship the prize regardless of who wins, and you pay the shipping, which comes out of your Whatnot balance when the giveaway runs.
  • BAGs cannot be used for paid-entry raffles, and giveaways cannot use randomizer wheels, physical or digital. Whatnot draws the winner.

Etiquette and common mistakes

  • Complaining about form fillers on stream: free entry is part of Whatnot's design, and in the US and Canada every BAG includes it. Treat every winner the same.
  • Listing BAGs you never run: Whatnot names an excessive number of unrun BAG listings as circumvention.

What is a mod on Whatnot?

A mod, short for moderator, is a Whatnot user a seller approves to help run a specific livestream. Whatnot says a mod's main job is making sure the chat meets the behavior and content standards the seller sets, by acting against offending users and spam. A mod is not a co-host: a co-host joins the show with their own video, while a mod works in the chat.

What mods can do

  • Remove users from the show: a removed user cannot rejoin, chat, or bid for the rest of that show, and cannot be added back. It is not a ban from Whatnot: they can still join other streams and the seller's future shows. The option reads Remove from show in the app and Ban from live on the web.
  • See muted chat messages: messages muted globally or by the seller's Muted Words list stay hidden from regular viewers, but mods can see them.
  • Use chat commands: /announce highlights a message, /hide sends a message only sellers and mods can see, and /slow sets a cooldown in seconds between chat messages.
  • Use show management tools: the viewer list, which shows who is watching and activity like raids, new followers, tips, auction wins, and purchases, and chat filters for questions, buyers, mods, and muted messages. Show stats such as estimated sales are for hosts and co-hosts only.

How sellers add a mod

  • Before the show: while scheduling the show, open the Moderators section, type the person's username, and select them from the list. They become an approved moderator for that stream.
  • During the show: tap or click their username in chat, choose Allow to Moderate, and confirm.
  • Removing a mod: tap their username in chat and choose Remove Moderator.

Rules and etiquette

  • Remove for cause only: Whatnot's moderator guidelines say mods should remove or report someone only when that user's actions warrant it or the seller asks, and should not ban anyone for disagreeing with them.
  • Warn first: Whatnot's best practices for mods include a verbal warning before a removal, keeping chat moving, answering as many questions as possible, deleting inappropriate messages, and avoiding repetitive messages.
  • Mods and breaks: Whatnot's Card Breaks Policy bars members of the seller's household, family members, and the seller's employees from entering the seller's card breaks. A mod who fits any of those cannot buy into your breaks.

When sellers use mods

Whatnot encourages sellers to have a trusted moderator assist with a show so the mod can remove misbehaving users while the seller focuses on running it. On a break night, a mod can answer "which teams are left?" in chat while you open packs, and use /hide to flag something to you without the whole chat seeing it.

Other Whatnot terms worth knowing

Pre-bid
A maximum bid placed before the show on an auction listing, if the seller enables it. Pre-bids are binding and cannot be canceled or reduced.
Buy It Now (BIN)
A fixed-price item bought instantly. A flash sale is a Buy It Now item discounted for a short window, sometimes only seconds.
Giveaway
A free prize drawn at random by Whatnot within five minutes: standard, follower-only, or a Buyer Appreciation Giveaway. The seller pays the winner's shipping.
Show notes
The text attached to a scheduled show. Whatnot's Card Breaks Policy requires break rules to be posted here or in the break listings.
Co-host
A second user who joins your show with their own video. One at a time, and every order, label, and payout stays with the host.
Personals, or rip and ship
Sealed product sold to one buyer and opened live. The product must stay on camera until it is fully opened.

One more rule that trips up new breakers: Whatnot's Card Breaks Policy bans randomizer wheels, physical or digital, and bans prizes, paid bounties, and bonus items tied to outcomes. Every buyer must get at least one card per purchase, and all product must be opened in the same show. How to run a Whatnot break covers the full rules in context, and the breaker glossary defines break-specific words like hits, base, and case breaks.

Raids and breaks

A raid that lands mid-break drops in viewers who missed which spots already sold. A board on screen listing every team and its buyer lets them catch up without asking in chat. In BreakTemplate you type each buyer once in Break Control and the OBS overlay updates in about two seconds, with each break's revenue, costs, and profit kept together. It does not import Whatnot sales, so you still enter buyers yourself.

For breakers

Give raided viewers a board they can read.

Pro is $19 a month with a 3-day free trial, and the free tools need no account.

Whatnot terms: questions

What is a raid on Whatnot?

A raid is when a seller ends their live show and sends themselves and their viewers directly into another seller's live show. The raided seller sees a public chat message announcing the raid, and viewers can opt out by leaving before it starts or leaving the new show at any time.

How do you raid someone on Whatnot?

In the app, tap More on the right of your show, choose Raid, pick a seller who is currently live or let Whatnot choose, then tap Raid Now and Continue. On whatnot.com, use More, Seller Tools, Start Raid, or type /raid @username in your chat. Raiding automatically ends your own stream.

What is a raid train on Whatnot?

A raid train is a community-organized lineup of back-to-back shows where each seller goes live in a time slot and raids the next seller when their slot ends. Whatnot documents raids but has no official raid train feature, so the organizer sets the schedule and rules.

What is sudden death on Whatnot?

Sudden death is an optional auction setting that ends the auction at 00:01 for the final bidder without adding time for late bids. A skull icon next to the timer marks a sudden death auction, and like every Whatnot auction it cannot be canceled once it starts.

What is a form filler on Whatnot?

Form filler is community slang, not an official Whatnot term, for someone who enters a Buyer Appreciation Giveaway through the free web entry form instead of making a purchase. US and Canadian users can enter this way, and a form entrant who wins gets the same prize as a buyer would.

Can a seller refuse a giveaway prize to a form filler?

No. Whatnot's giveaway policy says sellers cannot deny a winner or downgrade the prize because the winner has not made a purchase. Requiring a purchase to win is prohibited, and sellers must ship the prize regardless of who wins.

What is a mod on Whatnot?

A mod, short for moderator, is a Whatnot user a seller approves to help run the chat in a specific show. As of November 2026, mods can remove disruptive users from that show, see chat messages hidden by muting, use chat commands like /announce, /hide and /slow, and use the viewer list and chat filters. Show stats such as estimated sales stay with the host and co-host.

How do you add a mod on Whatnot?

While scheduling a show, open the Moderators section, type the person's username, and select them from the list to make them an approved moderator for that stream. During a live show, tap or click their username in chat, choose Allow to Moderate, and confirm. To take mod access away, tap their username in chat and choose Remove Moderator.

Keep reading