Muchos Grassy-Ass

A play-on-words of the Spanish phrase "Muchos Gracias".
Another way of saying "your ass is grass".

Person A: Joe is being a real dumbass. And I heard he boinked Alex's girlfriend.

Person B: Woa. That's gonna be Muchos Grassy-Ass.

by OhMyGawth July 11, 2009