The pee pee poo poo check phrase spread as a low effort meme format online, built around pretending to do a proper microphone check while saying the most immature words possible. Covers like this one keep the joke alive by re singing it in different styles, which makes each version feel familiar but slightly new. It stays popular on soundboards and short video apps because it is instantly recognizable, safe to quote among friends, and works as a shared in joke about bad intros and failed serious takes.