Greasy mop Share definition Flag Somebody's entire afro's nastiness. Defined as a person's slimey, filthy, and lubricious hair. Person: Hey look at that guys greasy mop! Person 2: Yeah man, does he even wash his hair? Greasy mop by Golfwang January 20, 2014 0 0 Get merch Get the Greasy mop mug. Buy Now — $32.95 See more merch