by Iceyhott August 27, 2017

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 hahainyourface69 May 12, 2021

When someone is giving their absolute all—mentally, emotionally, and physically—to achieve a goal or overcome a challenge. It means full commitment, no holding back. Not just about physical strength, but full dedication and drive.
Ever since she decided to become a doctor, she's been going full muscle—no parties, no breaks, just pure grind.
by KingZoro01 May 4, 2025

Jake Phelps could muscle any trick in the book. Dude didn't give a fuck about anything other than skating.
by ThePhelper May 7, 2019

Men that may or may not be over weight that have a large chest area. If they were ladies we calling them titties but men don't like the term.
by Bigdoginc November 9, 2020

by Mr. Hustlehands December 18, 2016
