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(merf) noun. acronym for Mom I'd Run From. The opposite of a MILF. A mom you definitely would not want to do.
"I don't know where she gets her good looks, her mom is a
MIRF!"

"Your momma's so ugly she's not a MILF she's a MIRF!"
by pose2pose October 29, 2006
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2
(merf) noun. acronym for Mom I'd Run From. The opposite of a MILF. A mom you definitely would not want to do.
"I don't know where she gets her good looks, her mom is a
MIRF!"

"Your momma's so ugly she's not a MILF she's a MIRF!"
by pose2pose October 29, 2006
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Get a MIRF mug for your mate Beatrix.
3
(merf) noun. acronym for Mom I'd Run From. The opposite of a MILF. A mom you definitely would not want to do.
"I don't know where she gets her good looks, her mom is a
MIRF!"

"Your momma's so ugly she's not a MILF she's a MIRF!"
by pose2pose September 16, 2006
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5
Abbreviation of the town of Mirfield, situated in West Yorkshire, England.
Boy 1: Gonna go out in Mirf tonight?

Boy 2: Fuck owt else to do.
by kermitthetoad December 02, 2009
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6
a wedgie that goes very deep. Also, a type of hole.
Dude, I got a huge mirf!
Don't let Char into my mirf hole!
by Mirf Char January 05, 2011
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