(noun) The popping sound made by an explosive fart. A crisp and short passage of gas from ones butt.
Excuse me while I crack my butt knuckle.
by Jay Hoe September 04, 2009
hot sauce, bbq sauce, and dry rub from youngstown ohio. usually consists of various types of hot peppers mixed with fruits and/or vegetables to make your buttknuckle sweat.
I bbq'ed yesterday and used buttknuckle hot bbq sauce and today i had to use tucks cuz my ass is dripping habanero juice
by Gravestone April 14, 2008
tailbone
I fell off my board and smashed my butt knuckle
by dvi May 07, 2010
buttknuckle-
the knuckle of your arse.

perverts
the guy who cried donkey
an ostriche's pine cone
the alphabet's squiggle
a mushroom's dick
the wiggles
magenta from blue's clues
muno from yo gabba gabba
"ow! i hurt my buttknuckle when i fell on my arse!"

"that guy just looked at my boobs and drooled out of his dick"
by dj lance July 11, 2011
Singular: Noun: hip bones that protrude like knuckles when a girl is bent over; Most apparent on skinny girls.
During doggie-style sex, a woman's buttknuckles can diminish the sexual experience.
by pullon7 February 04, 2010
1. Somebody with a mood disorder, such as Bipolar Disorder.

2. A person who is culturally and/or racially prejudiced.
1. My wife is a buttknuckle. She belongs in a mental hospital.

2. I ran into a couple of buttknuckles in the ghetto today. I saw them throwing beer bottles at a black person's house.
by JushtinSmeagol March 12, 2011
The scienctifical term for the end of your butt bone.
I broke my buttknucle.
Uhh.. either i sat on a waterbottle or i just broke my buttknuckle.
by Rikki, Ryleigh June 22, 2009

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