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8.
An ethnic slur of unknown origin in reference any and all attendees of science-fiction and fantasy conventions. Specifically used outside of Jack in he Boxes.
Hey! Whats up you dirty Koch?

Dont be such a Koch.
by Misskatonik April 13, 2009
4 26
 
9.
The word Koch means that a person is gay.
You can tell he's so Koch.
by jctns May 03, 2008
10 33
 
10.
Very decent and "appropriate' manner of stating the word 'Cock'.

Although it is spelled " kaw - csh
Damn!!! That drunk guy was being such a Koch!!
by hits December 07, 2003
14 38
 
11.
an action to move tilt your head either left or right
when i say koch you MUST tilt your head
by Jwords April 26, 2008
5 30
 
12.
Enjoys receiving anal pleasure and/or blumpkins. Often cannot stop studying chemistry, yet he has the largest testicles known to man.
Holy shit koch, you have to stop blumpkining and studying.
by Strumdingler February 01, 2005
47 72
 
13.
The most annoying kid in the world. He is an absolute wigga. He wears white clothes but talks black. I hope he moves to upstate NY soon
Will Koch, shut the hell up!!!!!!!!!!
by uknowhoiam July 02, 2004
15 43