(F)emale or (M)ale ? -- when you tell someone something and at the end they have no clue about what you told them to diss them
-Did you go to the party last night? It was just amazing.
Unfotunatly, Sara & John didn't come.
-How did Sara dress up?
-f or m ?
by UnNamed1692 November 13, 2007
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The function of uck equals m of ath. Fuck math.
My math teacher didn't understand what i was trying to say so i put it in terms she would understand. F(uck)=M(ath)
by orangecrush1221 May 4, 2008
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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
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FM student 1 : yo u driving your beamer today
Student 2 : no my dad just got me a lexus
by ohshitbaby May 16, 2006
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Facebook masochism. Torturing yourself by obsessively monitoring the page of someone you like, but who doesn't like you. This may also include visiting pages of their friends, family and co-wokers. F&M differs from stalking in that any information gained; seeing what they do, where they go, what's new, etc. only makes you more miserable because you aren't a part of it; yet you can't stop looking.
It's his fault I'm into F&M. He shouldn't have told me he liked me, slept with me and then never called me.
by Dirty Band-Aid September 11, 2010
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Female or male. Shortening of the question "are you a male or female?" Commonly used in random chat sites.
You: F/m?

Them: male
by Orange Boi April 21, 2010
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