Butt Muscle 

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!

Butt Muscle by D-Peezy February 27, 2009

Butt Muscle 

Douche Bag.
White Hat.
Poser.
D. Metzler From Baltimore Maryland

"Butt Muscle Is The New Douche Bag."

Butt Muscle by Windsah Clang August 21, 2009

Muscle Butt 

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.

Muscle Butt by Lilyana Robinson April 23, 2019

muscle butt 

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

muscle butt by David Yeum May 16, 2016

muscle butt 

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

Damn, that girl's got a fucking muscle butt!

muscle butt by Rams03 May 27, 2016

Muscle Butt 

A popular trend starting in late 2021 to current of females posing in tights or yoga pants highlighting their buttocks, usually in a gym or other athletic environment.

My IG feed is flooded with muscle butt photos.

Muscle Butt by Hype_813 December 19, 2023

butt muscles 

a stupid person or a hole

josh is a butt muscles

butt muscles by ABITTY February 27, 2009