bus bryl Share definition Flag n., the greasy smear left behind on a bus window by the hair product of a passenger who rested his or her head against that window (derived from 'Brylcream') I'd take a window seat except for that nasty bus bryl. bus bryl by copyedit October 7, 2006 0 0 Get merch Get the bus bryl mug. Buy Now — $32.95 See more merch
