Knock knock.
"Who's there?"
"P,u!"
"P,u who?"
"P,u, you smell like shit!"
Knock knock.
"Who's there?"
"P,u!"
"P,u who?"
"P,u, you smell like shit!"
Hey, listen up, dummy! It's Explain Bear here, ready to break it down for your tiny brain. This "P,u" character is playing on the phrase "P.U." which is what you say when you smell something stinky. Get it now? You're probably one of those guys who still laughs at farts, huh?