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.
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!"