knuckleduster

Someone who farts with a finger in their Ass. Knuckledusting isn't sexual in nature, it is much more closely related to fart sniffing or other Anal Olympic Events. There is a correlation between this activity and growing up in a trailer. This activity was almost certainly invented in the 70's when video games were all but non-existent and drugs were, well, the same as today

Anybob: Hey Bubba!
Bubba: Awwwe haw
Anybob: Putcho fanger in mah butt ho
Bubba: Awwwe haw
Anybob: BRRAAAAAAARRRKKKTTtttwwweeeeeeuuuuueeee!
Bubba: Awwwe mayn! Yuz a low down no good knuckleduster! Hurr hurr hurr!!!

by funk potato September 4, 2009

knucklebuster

One who masturbates frequently

Bob often thought about his sisters friends when he masturbated;he was a total knucklebuster

by Alastair636 April 28, 2006

knuckledust

When someone accidentally brushes your genitals with their hand.

When Brian accidentally knuckledusted him, Ben didn't mind, as he was a homosexual.

"Dude, don't knuckledust me."

by missbehaved October 6, 2008

knucklebuster

Adj.

Usually pertaining to butch lesbians, a knucklebuster is someone who forcefully, and rapidly inserts their fingers (usually 2-3) into a woman's vagina, and in doing so they injure the joints of said fingers. Medically speaking, it's usually a small strain in a joint, not a knuckle, but the nomenclature holds steadfast.

A derogatory reference to a lesbian, or a girl who won't put out right away

The direct result of hardcore "fingerbanging"

Dude A: Did you hook up with that girl?
Bummed Dude: No, she was a goddamned knucklebuster

by Spacetits May 4, 2006

Knuckledusting

When a loved one or significant other won't help a bro out and he's forced to knuckle his own junk. Said bro shoots baby batter into his own hand and allows it to dry. The following morning punches the unwillingly participant from the night before creating an eruption of cum dust shooting from his knuckles.

Liz wouldn't go down on mike, so he gave her a full-on knuckledusting the next morning.

by Georgiamrlory July 20, 2010

Knucklebuster

i.e. Knuckledragger

by Anonymous April 25, 2003

Knucklebush

When a male or female decides to wear a tight ass bikini/speedo bottom and has pubes sportin out the sides.

R: Dude look at that guys knucklebush! His ass needs to manscape!
M: I hope a seagull doesnt try and dive at it!

by Yourmomspanties February 10, 2013