SE in slang uses
[1940s] (US) an insignificant, paltry person.
[late 18C–mid-19C] to steal loaves from a baker’s basket.
[mid-18C–1930s] (UK Und.) a gambling and cheating game, in which a garter or belt is folded and held out to the punter, who bets that by pricking with a pin they can hit the place where the material is folded; almost inevitably they fail and lose their money.
[early 16C–early 19C] a tailor; also attrib.; thus prick a louse v., to work as a tailor.
see under master vein n.