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adj.
Ready and Eager to Fight.
Combative in Nature.

n.
Graffiti Artist (Canadian)
TV's Judge Judith Sheindlin (AKA "Judge Judy")
by Pugnacious July 28, 2005
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3
A person who likes to fight.

ADJ - Latin - Dir Pugnant.
That Douchebag meat head on the football team is very pugnacious, he has one beer and wants to fight the entire party, it seems that his shirt is off more than its on.
by Brownstains February 19, 2014
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