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1.
When someone is being an asshole and you don't want to call them an asshole, you can just call them a BIG JERK instead.
him: you can go suck it
me: you're a BIG JERK
by ESB09 December 30, 2008
 
2.
Any AJ holding in Texas Hold 'em.

References AK - Big Slick, and AQ - Big Bitch
I went all in with the Big Jerk and ran into queens.
by Bag of Donuts March 13, 2011