GSLSF Share definition Flag Grab Squeeze Lick Suck & Fuck I got a text message from him that said "Your stuff is what I like to call gslsf" so I think I'm gonna get laid! GSLSF by Rebecca Maguire December 14, 2008 0 0 Get merch Get the GSLSF mug. Buy Now — $32.95 See more merch