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1.
noun

A person who possesses the perfect balance of geekiness and self-confidence to wear a fanny pack. Most Fanny Pats are gay, although the odd one may be straight or a-sexual.
Dude, check out that Fanny Pat! He's wearing a buffalo helmet, a rolled-up t-shirt and low-cut jean shorts!
by Tootsie613 January 14, 2011
25 2
 
2.
A gentle double tap with the open palm on a girlfriend's fanny indicating affection when walking. Used in public or where there are potential suitors as sign of possession.

Note: take care using in UK where fanny has a completely different meaning!
Jeff gave Jane a Fanny pat as they walked into the party together
by rapmac November 10, 2009
4 11