FBBlock

FBBlock is the blocking reaction in Twitch's coordinated American-football global set. The image shows a football glove raised in front of a purple sleeve, turning the idea of a block into a simple stop gesture. In football, blocking is the legal act of obstructing an opponent, so the command maps directly to one of the sport's basic actions.

The wider FB set gives chat separate commands for passing, catching, running, spirals, penalties, challenges, blocks, and touchdowns. Viewers used those pieces as a vocabulary rather than only as standalone faces: a documented Nightbot football command chained FBPass, FBCatch, FBRun, and FBBlock together to act out a miniature passing play in chat.

Viewers type FBBlock in Twitch chat for successful blocks, pass protection, defensive stops, or playful moments where chat wants to say that something has been shut down.