Top Definition
Something you shout out when you are with a group of friends when crazy shit just went down, and you dont know what to say.

Jim: Dude, watch this
Taylor: what r you doing? AH!
Jim: hahahahahahahha!
Taylor: was that a fire cracker that almost fucking hit my ear or did u? What the fuck just happened!
Jim: That was so
Taylor: So what?
Jim: HP MOTHER FUCKER!
by Grams69. June 28, 2009
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