The phrase vai a merda is a common rude Portuguese expression roughly meaning go to hell, and clips built around shouting it at a named person circulate widely in Brazilian online humour. This version gained traction as a shareable reaction audio because it is so short and direct, fitting easily into chats, edits and soundboards. The appeal is less about Murillo himself, whose identity is not widely known, and more about using the name as a stand in for anyone who has just annoyed the group.