Top Definition
Step 1: With a clenched fist, retract the forearm towards the shoulder in a hammer fist fashion.

Step 2: Extend the fist outward to the side of one's body until desired length is reached.

(Shit techno plays)Guido: Oh snap,it's time to dance. Guido's assemble, it's Guido Fist Pump pump pump. Damn we're jacked and tan.
by Danbeelz July 15, 2008
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