FBPenalty

FBPenalty is the penalty reaction in Twitch's American-football global set. The image shows the yellow flag officials throw onto the field when they mark a foul, while `FB` shortens football and `Penalty` names the call.

It belongs to the same chat vocabulary as FBPass, FBCatch, FBRun, FBBlock, FBSpiral and FBChallenge. Twitch has repeatedly built live NFL viewing around chat, including Thursday Night Football streams with team-logo globals, co-streamers and football-specific emotes. No surviving first-party announcement ties FBPenalty itself to one exact NFL campaign, so the page keeps that platform history separate from the image's literal football meaning.

Viewers type FBPenalty in Twitch chat when a flag is thrown, a foul changes a play, a call is disputed, or a streamer makes a mistake that chat wants to treat like a penalty.