When you put one of your knuckles on a pussy and virgourously rub until the pussy and knuckle become raw.
Bro I can't believe Samantha took that knuckle burn so well, I still have 3rd degree burns on my knuckles.
by Penisgrasper69 August 4, 2017
Get the knuckle burnmug. by WoWer142 September 22, 2015
Get the knuckles downmug. A variation on the term "Moose knuckle," but referring to the bulge in the crotch of a hugely obese woman.
"Look at the Brontosaurus Knuckle on her!"
"I saw Rosie O'Donnell on the cover of People. Tight sweatpants and total Brontosaurus Knuckle evident."
"She went from Camel toe to Moose knuckle to Brontosaurus knuckle in 6 short months."
"I saw Rosie O'Donnell on the cover of People. Tight sweatpants and total Brontosaurus Knuckle evident."
"She went from Camel toe to Moose knuckle to Brontosaurus knuckle in 6 short months."
by Jimmy Speedo October 14, 2009
Get the Brontosaurus knucklemug. by Crunchmaster69 December 20, 2020
Get the Red Knucklesmug. by renee87 September 28, 2011
Get the Camel Knucklemug. When you're fucking your bitch and when she goes to sit back on that dick and then it snaps and the area where it snaps forms a hard tight knot and causes your dick to have a permanent bend in it.
by BigDiddyWillie May 23, 2018
Get the Cock Knucklemug. a name for a snowboarder
by telechick December 25, 2007
Get the knuckle-grindermug.