by David Yeum May 16, 2016
by Rams03 May 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
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.
by Hype_813 December 19, 2023
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 27, 2009
by Windsah Clang August 21, 2009