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1.
A word to exclaim when frustrated, or having a generally bad time.
"Gnarr! My hand exploded."
by gnarr-ly_girl January 08, 2004
 
2.
A stupid creature from the game Serious Sam. It just runs at you. You shoot it, it gets back up, and keeps running straight at you.
Can be used as an insult towards a similarily stupid person.
You gnarr *shake fist*
by Damien113 January 26, 2005