MIF 

a MIF is a MILF without the L.
In other words, a mom that I fucked.

charlie: Damn look at Michele's mom she is such a MILF!
Me: Nah, she's a MIF on my list.

MIF by osco50 March 14, 2008

MIF 

Similar to MILF "Mum I'd Like To Fuck", however MIF stands for "Mum I Fucked".

Harry: Kenny your Mum's a MILF

Kenny: Oi!

Ryan: Kenny your Mum's a MIF

Kenny: ....

Ryan: ;)

MIF by Dyaaar December 12, 2009

Mif 

Mom I'm fucking.

See that blonde over there? She's my mif!

Mif by RhodesNYC May 18, 2009

Mif 

Mom or Mother I fucked

Steven:Kevin's mom is the ultimate milf
Garret:Nah dude shes a mif
Steven:What's a mif?
Garret:Mom I Fucked

Mif by peaurgboipsgb June 13, 2007

MIF 

Represents a description of woman, most likely the mother of a close friend, in a given point of time. MIFs are women who used to be known as MILFS. Mother I Fucked!

1.I enjoyed her transition from a MILF to a MIF very much.

2. Dude, did your mom tell you she aint a MILF any more?

3. Steve, I finally did Maja. - Whoww.. so she turned from a MILF into a MIF.

MIF by Sakicman October 12, 2011

MIF 

Mom I'd fuck. Precursor, and more concise form of, the term MILF that was around long before the movie American Pie

Even though matt's mom is sixty, she is still a MIF

MIF by Augie50 July 13, 2006

mif 

Mom I fucked. (A take off on American Pie.)

How often do you think a milf becomes a mif?

mif by m August 14, 2005