O Button (blood Type) on Twitch

What it signals here

stream usage

Used in stream titles or overlays styled with block-letter emoji fonts, or in chat when blood type personality topics come up in variety streams.

emote mapping

May map to custom channel emotes in anime-focused or Japanese culture streams representing the O blood type.

chat meaning

In chat, spamming button letter emojis including 🅾️ is a common way to spell out hype words or streamer names.

clip context

Clip titles sometimes use button emojis including 🅾️ for stylized titles that stand out in clip libraries.

subscriber context

Subscribers in anime or J-culture streams may use 🅾️ in their sub messages to identify their blood type as part of community bonding.

See it elsewhere