One of a group of usually parallel scratches engraved in muscles by a barbell or other exercise agent.
by 476+21 November 7, 2022

When you look big but you're not really that big. No strength behind the muscles. Fake fuckin' muscles. Weak men have popcorn muscles.
Ivan Bogovich has popcorn muscles. Ivan Bogovich is a weak man. Ivan Bogovich didn't wipe his butt until middle school.
by Tyler jean November 24, 2016

A flex, usually in the form of an emoji, used to indicate a post of strength or celebrate the dunking upon of an irritant or adversary.
by dux4life May 12, 2022

To act like a tough guy when your friends are with you, to someone who you would not if you were alone.
Carlos and Jared: Did you talk any more shit to Bill when we were gone?
Xander: No, you guys werent here.
Carlos/Jared: But you're so tough, you have meaningless tattoos, you listen to rap music really loud, and you go by Xander instead of Alex or Alexander.
Xander: I guess we all just have friend muscle.
Xander: No, you guys werent here.
Carlos/Jared: But you're so tough, you have meaningless tattoos, you listen to rap music really loud, and you go by Xander instead of Alex or Alexander.
Xander: I guess we all just have friend muscle.
by bmazz88 June 9, 2011

The crap that happens with your body right when you decide that you are a gifted athlete. Your muscles decides you should have stuck with high school chess.
I crushed my drive on the 17th hole and had 75 yards to the pin. On the 18th hole, driver in hand..my buddies remind me of muscle memory man, muscle memory. I shank that drive right into the lake. I have a serious case of muscle Alzheimer’s.
by Yaks_man March 9, 2025

by Meish September 16, 2017

by Dick Gosinyah July 17, 2022
