Top Definition
MFR
Stands for Mother Fucking Retard
Billy: Ouch! (runs into wall)
Jimmy: Wow, you are a MFR!
by Jenna Lover December 26, 2006
MFR
My friend's reaction
MFR when he hears about my new girlfriend.

MFR when he broke his phone.
by DewItYourself December 12, 2013
MFR
Male/Female Ratio
"I'd love to move to South Korea, but the MFR there is much too high"
"Im so hyped for Sam's party! I heard that the MFR there will be really low."
by 9bit March 14, 2016
MFR
Stands for MOTHER FUCKING REMARKABLE
Dude, how was that party last night?

Man, it was pretty MFR!!
by Rikey Slade54 April 05, 2011
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