Fmf

Fuck mate Friday

#fmf

by Barbiegirl December 13, 2014

fmf day

FMF Day stands for Fuck My Friend Day.

While hanging out in the backyard, all of us friends declared it FMF Day. We went inside and fucked in a pile.

by Davey J May 6, 2007

Five Minute Footlong aka "FMF"

Taking a shit twelve inches in length in roughly five minutes.

I just took the biggest five minute footlong.

Did you see that "FMF" that was left in the toilet?

........Five Minute Footlong aka "FMF"........

by Mr. 5150 September 8, 2010

kjssssajjbdsgbkjsjgmsv fdsmkmdlamglkmaflkmgalmv tkdbafm b f fmdd fmf fmfmf fmvrejqmfkfmrelrelkmfrklmfkmrkmklrmlkmr

the act of spamming your keyboard randomly when board in school

wow she just kjssssajjbdsgbkjsjgmsv fdsmkmdlamglkmaflkmgalmv tkdbafm b f fmdd fmf fmfmf fmvrejqmfkfmrelrelkmfrklmfkmrkmklrmlkmr

by FortnitePro2001 March 17, 2022

FMF

FMF can also refer to "fill me full". As in group sex or orgy. When I mentioned it to a female friend she said to her it ment fuck me forever.

I learned this off Craigslist. A female had FMF DP. As in fill me full double penetration.

by To E Z March 5, 2021

FMF

a female furry who is Buff as Shit

I love to jerk off to FMF

by Max Wedge March 19, 2023

FMF Paradox

Fucking my family paradox, The theory you can never get too close to someone who is having sex with a member of your family because of the expected akwardness. Also can be used as fucking my sister paradox or fucking my mother paradox.

Friend 1: My Sister's boyfriend keeps trying to be my best friend.

Friend 2: So what's wrong with that?

Friend 1: FMF paradox man, it's too awkward.

by Billy Mcgee February 21, 2014