Its when you wipe your ass after a particularly filthy dump and you get a shit stain your thumb knuckle.
I was pleased to finally get the key to the executive wash room, however Stan Phillips was not pleases to see that I had a shit stained thumb knuckle when I shook his hand at the share holder meeting.
by jim dandyy June 13, 2011
Knuckles is a cool guy with a bad attitude. He does'nt like to be pushed around. Him and Sonic fight a lot, but I think their good buddies.
by Hamtaro October 15, 2003
Get the Knuckles The Echidna mug.Related Words
by morningwood faerie February 5, 2003
Get the Fuck-Knuckle mug.Remember that slag from the other night? Yeah I 2nd knuckled the bitch next to the bandit in the kebab house.
by Chris Robertson August 17, 2006
Get the 2nd knuckle mug.by Arty Partida February 28, 2008
Get the Chocolate Knuckle mug.The skin or fold that the butt creates when standing up, and dissappers when bending over. Its the space between the upper thigh and the bottom of the booty. Common is girls with large behinds.
by Brooke Is a SKANK August 19, 2009
Get the Booty Knuckle mug.Little deformed versions of Knuckles from sonic the hedgehog. They ask if you know de whey, where is the queen (typically some random anime girl) and klick violently as it is the national anthem
Ugandan Knuckles 1: Do you know de whey, brother?
Ugandan Knuckles 2: No I do not know de whey, look there is the queen!
*Violent klicking of excitement*
Ugandan Knuckles 2: No I do not know de whey, look there is the queen!
*Violent klicking of excitement*
by The_Dogeiverse January 10, 2018
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