silf's

Bailey and Ridgely, silf=sister-i'd-like-to-fuck.

Dude, the silf is rockin'

silf's by kate January 11, 2005

SILF 

Shirt I'd Like to Fuck

"BustedTees aint SILF..."

SILF by An0nymous..... June 7, 2009

SILF 

Sister Illd like to fuck

my sister is a SILF

SILF by SexualityChecker July 18, 2018

SILF 

Site I'd Like to Fuck

UrbanDictionary is SILF

SILF by An0nymous..... June 7, 2009

silf 

Sandwich I'd Like To Fuck

That sub at Quizno's is a SILF.

silf by Freakinhuge May 17, 2006

Silf 

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

Silf by ill bang ur sister! December 8, 2004

silf 

sex i'd like to forget

dude, shack had some serious silf last night. He's still pissed off

silf by i banged your mom December 9, 2008