by vexnews June 27, 2007
The supernatural ability that some women’s pussies have to grip a dick during a vigorous banging session. It will usually result in immediate jizzing for all but the most experienced men.
Pat: Was that broad you brought home last night worth another run?
Lee: She was like a unicorn using her magical superpowers of the 3rd muscle to grip my dick I lost it and filled her full.
Lee: She was like a unicorn using her magical superpowers of the 3rd muscle to grip my dick I lost it and filled her full.
by Bluto726 March 19, 2022
an asshole
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!"
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 6, 2014
by Yet squad boy February 12, 2016
The one and only "Legendary Luv Muscle" "Big Jim Reaper" "Kentucky King of Kickass" "the Deity of Doin It" "the Hardcore Hillbilly Heartthrob",the real reason Luv Muscle means anything in today's society,this man is the reason for the big dick myths and legends associated with Russell or Luv Muscle,the sexiest critter to ever crawl out the Appalachian mountains,lover, fighter, friend,father,an forever a Legendary HOTTIE!!!!!
by BigJimReaper February 24, 2023
girl 1- "I got a new boyfriend!"
girl 2- "What's he like?"
girl 1- "uh..."
girl 2- "he's a muscle boy"
girl 2- "What's he like?"
girl 1- "uh..."
girl 2- "he's a muscle boy"
by Griffin Stein November 21, 2022
Boy oh boy, Billy is acting like a dink muscle today. Look at him barge through the line to load up on seconds.
by GMA-4-Me December 28, 2018