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an unnecessarily long abbreviation for (for your mutha fucking information you nosey cunt)
jill: omg so how are you and sally u guys seemed so awesome together u guys seemed perfect together!

jack:well fymfiync she cheated with me on my best friend and broke my heart and im extremely depressed.

jill: oh my bad
by sonniku727 July 26, 2009

Words related to fymfiync

bitch cunt fyi if you have to know well well bitch whore