Freshman Year Fuck It- feeling of freshman year of college when you are willing to do anything.
Student 1: Hey man how late where you out last night?

Student 2: I got back to my dorm at 6
Student 1: Didn't you have an 8am?
Student 2: Yeah but FYFI
by rmattr September 15, 2016
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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"
by aukaro July 10, 2012
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a huge green fart bubble which is filled with diaherea stuff
Hey Dude! i just had a fyfy!
EWW so did i!
by Zombiekookie August 6, 2007
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