Monster Ass Monster 

When you have a huge ass and your ass is eating your pants exposing your crack.

when big ol' aunt sally came over last Christmas she had a Monster Ass Monster

Monster Ass Monster by frosty8 June 25, 2008

ass monster 

when your pants are eaten by your ass and you can see your crack

"man that guys got a major ass monster."

ass monster by frosty8 June 24, 2008

Ass Monster 

A living creature that is born out of your asshole. It runs around and rips people's heads.

"My daughter got eaten by an ass monster!"

Ass Monster by Markey May 22, 2003

ass monster 

one who gives rough buttsex. an insult.

u assmonster!

ass monster by jay May 17, 2003

Ass Monster 

One who has a nice, big, sexy ass but has an ugly ass face.

Damn lookit that ass!! hope that ass monster doesn't turn around..

Ass Monster by peter January 23, 2004

Ass Face Lava Monster

A person who acts like a monster made of Lava, With an Ass for a Face......Its pretty self explanitory.

Person 1:Hey did you see that guy slap a baby sea lion in the face?
Pesron 2:Yea dude. What an Ass Face Lava Monster.

Ass Face Lava Monster by 15 mexicans July 27, 2011

Let A Monster Out Of Your Ass 

The action of releasing a giant pile of fresh caca, like, the warmest smelliest largest pile of doodoo you've ever seen, even after wiping, you'll still get dirty pants.

Autumn: "DUDE HURRY UP I NEED TO TAKE A MASSIVE SHIT!"
Filip: "SHUT THE FUCK UP, I'M MAKING MOONSHINE IN MY BATHTUB, GO LET A MONSTER OUT OF YOUR ASS IN A HOLW OUTSIDE!"

Let A Monster Out Of Your Ass by Filip H. Tabel October 4, 2023