Stands for Scam i'd like to forget.
Scam
i'd
like(to)
forget
"I hate that 9-year old who told me he was a midget! I had sex with a minor! That is one hell of a silf!"
by ub3r1337 July 16, 2006
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Top Definition
Sandwich I'd Like To Fuck
That sub at Quizno's is a SILF.
by Freakinhuge May 08, 2006
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Sister I would like to fuck.
much like Milf, Gilf, Dilf(dad),Dilf (dog),Dilf(donkey)Cilf(child),Bilf,Cilf(cat)or any other farm animal.
Person 1:OH MY GOD, look at that chick.What a SILF.
Person 2: Dude, thats YOUR sister. That's nasty.
Person 1: It's called SILF for a reason dude. DUUU
by ill bang ur sister! December 08, 2004
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Site I'd Like to Fuck
UrbanDictionary is SILF
by An0nymous..... June 07, 2009
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Shirt I'd Like to Fuck
"BustedTees aint SILF..."
by An0nymous..... June 07, 2009
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sister i'd like to fuck

(same concept as milf)
that silf lives in your house?!?
by Spyder January 05, 2003
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Sheep I'd Like To Fuck

Commonly Used in Wales
Welsh Farmer: oh, thats a mighty fine sheep
Welsh Farmer b: yes it is a silf.
by ROBERT SAVAGE July 08, 2006
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Sandwich I'd Like To Fuck

A Sandwich made so perfectly one would be able to fornicate with previously mentioned sandwich.
"Oh man, that was such a good sandwich I'd basically call that a S.I.L.F."

Guy 1: "dude I just had the best S.I.L.F."
Guy 2: "What?"
Guy 1: "SANDWICH I'D LIKE TO FUCK!"
by JoJo Martinez September 29, 2006
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