by ROBERT SAVAGE July 8, 2006

by ChriT January 12, 2017

that silf lives in your house?!?
by Spyder January 5, 2003

I was like hey wargo, he goes what do you want, I said besides your sister and then he threw a sandwich at me in disgust
by Ruben Mothballs June 15, 2003

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
by alwaysaladybug February 22, 2011

Silf is the shit.
by Big Tool December 25, 2003
