silf

acronym for sister i'd like to fuck. derived from milf another acronym this time for mother id like to fuck.

damn phil's sister is a fucking silf

by Allay June 17, 2004

silf's

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

Dude, the silf is rockin'

by kate January 11, 2005

silf

Smurf I'd like to fuck.

"Hey Partel, see that fit smurf over there?"
"oh yeah that's a real silf"

by smurfdoctor May 28, 2009

Silf

Sister or Sister in-law I'd like to fuck

Hey Brandt, your Sisterin-law is a SILF!

by Achilles2009 April 16, 2009

silf

Skull I'd like to fuck

Paris Hilton is such a SILF!

by persnickety twit January 14, 2005

silf

Swimmer I'd like to fuck

Amanda Beard
I heard Amanda's posing nude in Playboy, what a SILF!!!

by Rich Vaccaro July 22, 2007

silf

Sheep I'd like to fuck

lonely farmer: damn look at that SILF
sheep: baaaaaah

by cnicolek September 15, 2007