ISLB Share definition Flag Inane Senseless Lybokek Babble, ISLB, used when someone says something stupid, or something nobody cares about. "I-I was just shitposting. -ISLB" ISLB by FrozenNebula December 16, 2021 0 0 Get merch Get the ISLB mug. Buy Now — $32.95 See more merch
