gruselusk Share definition Flag Someone who "gets it" when someone else says, like, "not 1337 today", and then responds like, "sure it isn't PEBCAK?". "My printer doesn't work. And I'm not 1337 today." "Perhaps it PEBCAK?" gruselusk by L33ch August 26, 2003 0 0 Get merch Get the gruselusk mug. Buy Now — $32.95 See more merch