fart knocker 

Reference to anal sex, basically a variant of "fudge packer." Usage hijacked and generalized by the Beavis and Butthead show in the 90s.

Those fart knockers are outside the gay nightclub again having a smoke.

fart knocker by Janet90232 October 24, 2007

fart knocker 

n. someone who is a loser or a moron; used as an insult by Second Graders

SHUT UP! You're a fart knocker!

fart knocker by Saint Shaggy November 5, 2002

Fartnocker 

Someone who jams farts back up into the ass with your finger, clogging it.

THomas is a silly ass fart-nocker.

Fartnocker by STEPHEN DOUGLAS March 24, 2003

fart-knocker 

A dumb ass

My boss is a fartknocker.

fart-knocker by Fartknocker girl June 19, 2003

fart-knocker 

A disreputable person with an odious personality.

Listen, you little fart-knocker, you open your mouth again and I'll feed you your arse.

fart-knocker by Bumkicker Slade May 10, 2005

fart+knocker 

A simple derogatory term used to make fun of someone.
It's use does not specify what the person has done, simply that you are letting them know your are making fun of them
Origin is from the cartoon series " Beavis and Butthead"

Beavis, you're such a fart+knocker.

fart+knocker by al cohen April 26, 2006

fart-knocker 

A male homosexual. Often used by straight males against other straight as a means of humilating him.

"Shut up, you fartknocker!"

fart-knocker by Fatty June 20, 2003