The origin of poi yo ass is not clearly documented, and the phrase itself appears to be valued more for its sound than for any literal meaning. Short clips like this spread through soundboards, group chats and short form edits where a two second shout can be reused out of context. Its popularity comes from that flexibility, as the same abrupt delivery can signal surprise, mock outrage or pure randomness depending on the scene placed around it, keeping it in circulation as a reusable meme reaction.