April 19 is when you send a friend, partner or someone you trust a picture of you flexing ur muscles.
*sends a picture of big booty flex*

wow! Happy national flex your muscles day! Here is one too ;)
by Nukemaster69 April 19, 2022
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Muscle lock

When you lock yo muscles hitting that shit
I blew aarons moms back out so hard using muscle lock
by Dprived November 12, 2023
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Smooth muscle

One of the three types of muscle. Widespread throughout the body, responsible for movement in the digestive, urinary and reproductive systems.
Person 1: *gets an erection*
Person 2: "Wow, your smooth muscles are really working there huh?"
by craigellachie March 02, 2022
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<.7.9.7.6.>I Know This Is not Life When Individual Mistake Their Own Sincere Muscle On Their Face <.E.N.T.><.7.9.7.6.>
<.7.9.7.6.>I Know This Is not Life When Individual Mistake Their Own Sincere Muscle On Their Face <.E.N.T.><.7.9.7.6.>
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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.
by Hype_813 December 19, 2023
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bowflex muscles

A term that originates from Batman issue 675. Used to describe a muscular man who assumedly gained his muscles solely from simple exercises and therefor can not throw or catch hands to save his life.
Man1: Damn, that nigga's a beast.
Man 2: Nah, he ain't nothing but a bottle of steroids and bowflex muscles.
by Drex V. December 03, 2023
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turd muscle

English Teacher: "This is the third time you haven't done your homework, Kyle."

Kyle: "I had chores to do on myself afterschool, teach!"

E T: "Oh, please, you're a turd muscle. That's why you didn't do your homework!"
by NateBlake666 June 06, 2014
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