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"BustedTees aint SILF..."
by An0nymous..... June 07, 2009
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2
by An0nymous..... June 07, 2009
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3
That sub at Quizno's is a SILF.
by Freakinhuge May 08, 2006
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4
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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A silf is a "sister i'd like to fuck". it is the same idea as a milf. Silfs are usually absolutely georgous, sexy, irresistable, and extremely flirty
Guy 1: "Dude you have to meet my sister Alie, she's a total silf"
by alwaysaladybug February 02, 2011
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6
dude, shack had some serious silf last night. He's still pissed off
by i banged your mom October 19, 2008
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7
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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