SILF Share definition Flag Acronym for Student I’d Like to Fuck Mary’s tits were spilling out of her blouse, so I made up a reason to have her stay after class. Jesus Christ, what a SILF! SILF by Sgt. Ponysauce April 6, 2018 0 0 Get merch Get the SILF mug. Buy Now — $32.95 See more merch