Urban Dictionary: butt muscles

josh is a butt muscles

by ABITTY February 27, 2009

A girl who has a ass that is so muscular that if she wasn't muscular it would be straight flat

Damn maddys ass is so muscular she got a muscle butt

by David Yeum May 16, 2016

When a girl got a fatass and you got to stop and reevaluate your whole life.

by Rams03 April 27, 2016

When your butt very strong. It doesn't jiggle but it is big. Also when you hit the but and it hits you back.

Ayo, you know that girl Tatianna. She really got a Muscle butt. It looks like it lifts the weight on weekends.

by Lilyana Robinson April 23, 2019

by Windsah Clang August 21, 2009

The name you give to a friend(or foe) , for being a dumbass.

DUDE!, i saw Matt talking to these hot chicks yesterday and he told me that he was busy, what a butt muscle!

by D-Peezy February 25, 2009