subs. (common).See quot. and MOSKENEER.
1883. Daily Telegraph, 9 July, p. 3, col. 1. The MOSKER is, in slang vernacular, one who makes a living by taking advantage of the business incapacity of persons engaged in the pawnbroking trade, and by subtle wiles and subterfuge imposes on their credulity and weak good nature. [From long article on THE MOSKER.]