A knuckles is a person who is a bad ass often using the catch phrase H.X.C (Hardcore) or often saying: Yo Yo Yo B Boy That Shits for Real Mutha Fucka’, for Shit, Bitch…Fuckin’ Ass and Blab Blab. Knuckles is also a sexual move where you shove your whole fist into a women's ass and say one or both of the two aforementioned catch phrases.
by John Romans January 3, 2008
 Get the Knucklesmug.
Get the Knucklesmug. by Joe-Nay June 27, 2006
 Get the knucklemug.
Get the knucklemug. by Mixmaster Jazzy G April 1, 2004
 Get the knucklemug.
Get the knucklemug. wassssssssapp my knuckle?
by sam123123 September 10, 2006
 Get the knucklemug.
Get the knucklemug. by JoOordan November 7, 2007
 Get the knucklemug.
Get the knucklemug. When fisting is just a few knuckles away from actually happening and the pussy region suffers from knuckle abrasion
by K#1 March 22, 2008
 Get the knuckledmug.
Get the knuckledmug. Shit man, don't touch that bike or Knuckle over there is gonna come over and explain his name all over your face.
by Cap'nJack December 15, 2008
 Get the Knucklemug.
Get the Knucklemug.