Top Definition
An acronym for "Yeah, fuck yeah." Used as an exclamation of strong approval, most frequently on the Internet or other environments in which informal shorthand is commonly used, although IRL use is more acceptable than with most other online acronyms.
The Hurricanes just won the Stanley Cup! YFY!!! XD
by El Schwartzo June 19, 2006
Abbreviation for 'yeah fuck yeah'. Used as a statement of agreement when the lads think of something worth your participation. Antonym - NFN (Nah fuck no)
Billy: Boys, I'm feeling pretty thirsty. Who wants to get wankered tonight?
Gus: YFY
by djjnrsxx April 13, 2016
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