Fm is a short way of saying "Fuck Me".
"Hey Adam fm tonight?"
"Sure (;"
by LifeGoesOnOk April 10, 2016
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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
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we both were thinking the same thing!that's an FM dude.
by pussy bee October 28, 2019
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FMS means freak my shit which basically means fuck this dick it’s a song by new boyz made famous by kylie Jenner on Snapchat of her dancing on Kendall Jenner’s lap.
put yo ass on my dick and pose on this shit okay now freak my shit (FM$)
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Fm, I messed up on the exam.
by Peteryo2002 February 1, 2018
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So basically when you lose your shit and need to go grrrr.

Aka the opposite of golly gosh
Aka fuck me sideways
fms
At this age at this hour how are the bitches still arguing we all know who the clear bitch is.
by fms/golly gosh July 25, 2021
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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 1, 2004
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