SILF

Scientist id like to f.

Bill nye is such a SILF.

by Science team April 21, 2022

SILF

Stands for Sister I'd Like (to) Fuck.

Dayumm your sister really is a SILF.

by BlazeItDude March 7, 2018

Silf

Someone I’d like to fuck

Jeez Gus is such a silf😫🤤

by Olivia & Keira May 12, 2021

SILF

Sister I'd Like To Fuck

When your best friend's sister is so hot that you actually want to date them.

If they have a hot brother it is known as a BILF.

Oh my god, did you see Jackson's sister, she's such a SILF!

by hug2002 February 9, 2019

SILF

"SILF" is an acronym for "Sister I'd Love to Fuck", which means someone's sister who'd you like to have sex with.

Boy #1: Gosh- Lily's sister is such a silf!
Boy #2: They are both silfs dude!
Girl #1: You guys are both right! They are silfs.

by Brainrotgobrrrr April 26, 2021

silf

a sister who is hot, basically a milf but a sister (silf)

person 1: ay! is your sister a silf?

person 2: uh ig...

by ursisterisasilf October 6, 2021

SILF

SILF - shitposter i'd like to fuck

Have you seen his stories? He's SILF

by dejniel May 27, 2022