t2xASU is a Twitch emote that typically depicts a cartoonish character (often representing a streamer or community member) holding up their hand as if to say "stop" or "no more." The gesture is similar to a "talk to the hand" or "stop right there" motion, and is often used to playfully reject, block, or dismiss something happening in chat or on stream.
The t2xASU emote originates from the Twitch streamer t2x. It is a custom emote, likely created for the channel's subscribers, and features a stylized cartoon version of the streamer. The exact year of origin is not widely documented, but it began appearing in Twitch chats around 2020 as part of the channel's unique emote set. There is no broader Twitch-wide history for this emote, as it is specific to the t2x community.