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The act of doing something uncalled for, and or stupid, that relates nothing to the matter at hand.
Guy #1: Yo bro! Did you go to that concert last night?
Guy#2: Yeah! Fo Sho!
Girl: Hey guys! Do you wanna sign my petition to take soda out of the vending machine?!
Both Guys: Girl. Leave us alone, and quit Herp-a-Derpin'
by tkomast3r77 May 01, 2011
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