-jobbing-

a. 1. Doing chance work or odd jobs; as, a jobbing carpenter. [ 1913 Webster ]

2. Using opportunities of public service for private gain; as, a jobbing politician. London Sat. Rev. [ 1913 Webster ]

Jobbing house, a mercantile establishment which buys from importers, wholesalers or manufacturers, and sells to retailers. [ U.S. ] [ 1913 Webster ]