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Quite simply, a penis. Just a nice endearing name for one.
"There's a worm at the bottom of the garden, and his name is Wiggly Woo!"
by Derplo August 05, 2012
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1. the act of hip thrust, preferably into someone of the opposite sex.

2. A small lump found in the breast tissue of a female.
1: i totally pulled a wiggly woo on that chick last night.
OR: I totally wiggly wooed her.

2:patient: I found a small lump in my breast.
Doctor:yep... thats a wiggly woo.
by katie and tori February 06, 2008
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