A single blow followed by rapid cuffs with the knuckles of the right hand, delivered backhand fashion, fist unclenched, hand semi-limp. This is a gesture of profound contempt, especially when done before onlookers. "The old zool (Italian) started to play the dozens (use abusive language) on me, so I gave him the five-and-fifty-five and spit in his eye."

- american underworld dictionary - 1950