the very center of a persons' abs (more common when it's a 4 pack) that is harder than the rest of that abs, and tightens similar to a knuckle. It hurts when hit directly, similar to the pain of playing bloody knuckles.
(out of stupidity) I'm going to break your tummy knuckle!
My tummy knuckle hurts after doing so many crunches.
My tummy knuckle hurts after doing so many crunches.
by Aaron Moe Scott March 31, 2010
Get the tummy knucklemug. Casey: Did you come inside her?
Bed: No, those ended up becoming knuckle soldiers.
"Nobody likes you, your father should have made you a knuckle soldier."
Bed: No, those ended up becoming knuckle soldiers.
"Nobody likes you, your father should have made you a knuckle soldier."
by captain asshat. February 7, 2010
Get the knuckle soldiersmug. "Dude, last night I was totally Slurpee knuckling that broad."
"Well if she's not having sex, you know she's slurpee knuckling."
"Well if she's not having sex, you know she's slurpee knuckling."
by TheRealGrundleGrundle March 1, 2010
Get the Slurpee Knucklingmug. Ellen lost a level on the app cooking craze and yelled at her phone screen, "FUCKing bitch knuckles!"
by ElleLightbulb August 24, 2017
Get the bitch knucklesmug. A person that does the wrong thing all the time and never learns from their mistakes. They love to blame others and never take responsibility for their actions.
Can you believe that knuckle knuck larry is drinking and driving his motorcycle again even after his 2nd DUI. He's always gotta learn the hard way.
by jimmybomm May 3, 2020
Get the knuckle knuckmug. by Professional Kid November 13, 2015
Get the Cranky Knucklesmug. by Steph X March 19, 2007
Get the nigger knucklesmug.