1 definition by The mystery shitter
When you are urinating when suddenly you need to violently shit. Then, you stop pissing and turn around, firmly pressing your puckered ass onto the seat and unloading an ungodly amount of assham into that poor, poor toilet.
Larry: "Damn, I thought you were taking a leak!"
Jim: "Yeah, sorry. I had a Knock, Knock Motherfucker moment."
Larry: "A what now?"
Jim: "Yeah, sorry. I had a Knock, Knock Motherfucker moment."
Larry: "A what now?"
by The mystery shitter April 28, 2022