Butt-knocker 

-One who is an anoying pest.
-used to describe Little sibbling
-Any one you are angered with

"Miley Cyrus is a butt-knocker

Butt-knocker by BAA-A-A_____I'M_A_SHEEP!!! April 27, 2009

Butt knocker 

Adj.

A man or women who has tons of buttsex

Shut up butt knocker! Go find another victim

Butt knocker by Rob T January 15, 2004

buttknocker 

One of the dozens of slang terms used by Beavis and Butt-head. Buttknocker could refer to
a)A homosexual, as anal sex is the only form of intercourse for gay men, or
b)An erection in somebody's ass, referring to pulling out and then tapping and wiping the semen on said ass.

Beavis: Shut up, Butt-head! I'm gonna play drums on your nads with my foot!
Butt-head: I'd like to see you try, buttknocker!
Beavis: Don't call me that, Butt-head! (Beavis kicks Butt-head in the testicles)

buttknocker by dilary huff April 24, 2008

Buttknocker 

1.) Term made popular by Beavis and Butthead.

2.) One who exists to knock on ass. Arguably an accusation of homosexuality.

Beavis: Heheheh, move bunghole!
Butthead: Uh, shut up buttknocker! Uhuhuhuh.

Buttknocker by C2Y October 4, 2005