(High school) Senior I'd Like to Fuck.

Similar in concept to MILF.
OMG! He's totally a SILF!
by TotesMcGoatsAFILF May 1, 2014
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Despite sluts are possibly diseased, it doesn't stop me from fucking them. All I have to do is put on a rubber. If they're ugly, no brown paper bag or rubber. The hot sluts are always a SILFs.
by Jamesbobond August 16, 2011
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Per an application (Naughty Gifts) on the facebook: a "Sheep I'd Like to Fuck"
On Brokeback Mountain, Jack's ass was not the only thing that Ennis lusted for. There were a multitude of SILFs to deflower and so Ennis brought a new "silence" to the lambs.
by theportangel June 13, 2008
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The abbreviation of "Sister I'd like to Fuck", used when a sister of someone is very hot.
Man, Tanner's sister is such a SILF
by thegreathenrylpa January 8, 2022
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My son Joshua is a silf, all the men and women want him.
by Milfeeee March 4, 2019
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