Definitions by aukaro

fyfy 

fyfy is an acronym for "fuck yeah fuck yeah"

usually used on twitter as a hashtag --> #fyfy

most commonly used when excited for something.

using fyfy is a classier way of cussing on social networks.

"going to the beach today #fyfy"

"got the best news ever #fyfy"

"I got my period #fyfy"

fyfy by aukaro July 12, 2012