Top Definition
When one person, with hands dripping wet, sneaks up behind another person and quickly wedges their soaked hands upwards into the armpits of the previously unknowing victim.
Dude, I gave her an armpit willy yesterday. She shrieked and then laughed.
by Cyber B June 20, 2008

The Urban Dictionary Mug

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

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The Urban Dictionary Mug

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The Urban Dictionary T-Shirt

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