SILF

Sister id like to fuck. Your best friends sister that you just wanna fuck like a horny dog until she cant take any more

dude, your sisters such a silf. I rode her all last nite

by silfassfucker January 10, 2009

Silf

Sister I'd LOVE to fuck

Erin's sister is SUCH a silf;)

by erinssisterlover101 June 10, 2009

SILF

A person's sister you will like to fuck

I told my friend he had a silf

by ApocalypticaX November 02, 2009

silf

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

silf

Sissy I'd Like To Fuck, S.I.L.F

"Damn, that is one SILF I would like to fuck."

by ChriT January 12, 2017

silf

sister i'd like to fuck

(same concept as milf)

that silf lives in your house?!?

by Spyder January 05, 2003

SILF

Slug I'd Like to Fuck
Slug as in a woman's damp pussy

Look at that girl over there, what a SILF.
I want you to rub your slug all over my bald head.

by seacull16 June 13, 2018