it means Mother I'd Like (to) Fuck it is basically a way of saying a woman about 30+ years is hot
Bored Guy:Lets go to the park
(hott 30 year old woman walks buy)
Horny Guy:WHOA! look at that milf
by Big Boi90 March 2, 2008
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When a young male spends too much time in the presence of an older lady, possibly a friend of his Ma or someone he works with in the vain hope she will decide to seduce him and give him a sexual experience that only an 'experienced lady' can.

The male will be late teens or early twenties and will brag about an extensive sexual history of attractive women, but will in reality have had sloppy sex with ugly to average girls in clubs who have already slept with his mates.
Hey Rob have you seen Chris hanging around the secretary's office again? He's been MILFing a lot this week!
by Conian February 2, 2010
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A mom you would engage in sexual activities with.
Daniel, your mom is such a milf! I'd do her right here and now.
by kataytay April 11, 2009
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Mother
I'd

Like (to)
Fuck

(a hot mother you would like to have sex with)
he's only my friend cuse his mom is a MILF
by sr.smiles January 24, 2010
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Mrs. Benz; an extremely fucking hot mom. Stands for "Mother I'd Like to Fuck".
Holy shit! Mrs. Benz is such a fucking MILF!
by The Fucking Don April 8, 2008
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