Definitions by El conquistador

Man on the Moon 

When having sex with a chick and you are doing her from behind, right before you "finish", you take a flag with your name on it and stick it into her ass hole and as you finish you yell out "I'm the man on the moon!".

Guy1: "Last night I conquered new territory, I took that fine ass home and planted my flag!"
Guy2: "Dayam man! You pulled a man on the moon on her ass!"

Man on the Moon by El Conquistador November 8, 2004