Abbreviated form of "Fat Momma", a (not necessarily derogatory) term used to describe a soft and plush woman with extraordinarily voluptuous curves. See BBW.
Gettaloadda that FM over there...I'd really like to be smothered by her lovin'!
by Dick Smothers December 06, 2003
FREQUENCY MODULATION

radio modulation techique where information (usally voice or music) is added to the signal and changed by varying the freqeuncy of the transmitter. FM is the most commonly used modulation for radio signals techneque above 30 MHz.

the term "FM" is also used to refer to the broadcast band from 88.1 to 107.9 MHz, using that same modulation mode.
FM signals have less static because changes in frequency do not pick up interferance that AM-modulated signals do.
by IrishRepublicanArmy October 17, 2003
f*cking magic, as in pondering computers and periphials
"How does rebuilding my desktop make my computer run better?"

"It's FM."
by Sam Bass March 12, 2005
Fuck Me plain and simple a short way for a fem to say to a guy "Please fuck my brains out"
"Hi, Jake, FM?" "Sure, when?"
by Summer September 01, 2004
the craziest most talked about school in CNY. known for the rich kids and their nice cars and some kick ass parties. made up of a lot of smarties and potheads. They enjoy blowing up toilits, making all the newspaper headlines and news channels. They got even more known when they made it on MTV pranks. sickkkk
Fayetteville Manlius fucking rules!!

bob: dude you going to that feild party some F-M kids r throwing?

billy: nah dude im going to the beer party the football teams throwing and then hitting up some other ones
-------------------
FM student 1 : yo u driving your beamer today
Student 2 : no my dad just got me a lexus
by ohshitbaby May 16, 2006
-Fresher Mistake.
When you realize that you/someone else has done something silly/regrettable/funny that you would normally expect of someone in their first year at University/College (a fresher).
"Oh dear, last night was a complete F.M, I don't remember anything"

"That guy you got with last night was a bit of an F.M"

After falling down some stairs
"First F.M for the day"
by Sarah1904 May 15, 2008
FM - abbreviation of "fat mess" a term used to describe someone who is not only carrying a "few extra pounds" but are also rough as a badger arse hole and utterly offensive to look at.
Carly: "ugh, look at that complete fm down the cake isle"

Ben: "oh god, it's a completely offensive gross"
by Benit September 11, 2011
Short for Football Manager.

A game in which the user manages a football team.

EXTREMELY ADDICTIVE
'Let's play some FM, mate'
by devoindahouse April 16, 2009

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