fyymf 

F*** you you mother f*****

Person 1 I hate you
Person 2 yeah well fyymf ( fuck you you mother fucker)

fyymf by OG jds August 1, 2017

FYYFF

Fvck You You Fvcking Fvck!

"You let who into the forum?"

"FYYFF"

FYYFF by The one and only EF May 22, 2004

FYMF 

An acronym for the expression "Fuck yeah mother fucker!"

I just aced my final, FYMF.

I just bought ice cream! FYMF!

FYMF by leftyturny March 4, 2011

FYMFASMD 

Literally, "Fuck Y'all MuthaFuckers And Suck My Dick".

Comes straight from the film, "Fear of a Black Hat" (1994), written and directed by Rusty Cundieff.

When pissed off and frustrated with friends (or just for fun dramatic effect)- especially when online, sign off a message/email/blog entry with "FYMFASMD!"

FYMFASMD by Jefferygn December 13, 2008

fyyfff 

Acronym for, "Fuck you, you fucking fat fuck."

Brian was really mad at Mikey during the pickup football game and all he could come up with was, Fyyfff.

fyyfff by Super3Way October 7, 2014

FYMF 

Fuck y'all mother fuckers

Screw y'all I'm going home FYMF.

FYMF by Zuwara November 9, 2018

FYMFI 

For your mother fucking information

FYMFI - here is that report you wanted.

FYMFI by HighKingOfScotland February 1, 2013