1883 Aug. 443/2 To the..mug-hunters [at yacht-races] it meant all three.
1942 L. V. Berrey & M. Van den Bark §636/21 Contestant for a prize, mug hunter or chaser, pot hunter.
1986 W. Safire in 20 Apr. 14/5 To a golfer, it [sc. a sandbagger] is a mug-hunter with an inflated handicap.