B Button (blood Type) on Twitch

What it signals here

stream usage

Spammed in chat to replace B letters in streamer quotes or to react to gameplay moments with absurdist humor.

emote mapping

Often uploaded as a custom channel emote on meme-heavy or variety-game streams.

chat meaning

Signals meme literacy and in-group identity among chat participants; used to signal 'based' or absurdist appreciation.

clip context

Clips are often titled or tagged with 🅱️ substitutions to signal the content is ironic or meme-worthy.

subscriber context

Sub emote versions exist on meme-forward channels, sometimes animated, as a subscriber loyalty signal.

See it elsewhere