What is Helsinki Hand Grenade?
1.
when someone is fingering someone elses ass hole and inserts their entire fist and then spreads it out, causing the other person to feel like something exploded inside them like a hand grenade.
That girl made me mad last night so i gave her the helsinki hand grenade.
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Random Words:
1.
to describe something awsome or cool or kick ass
dude that fart was zesttingaiccyy bet you cant top that one
See cool, awsome, great, ..