The Collaborative International Dictionary of English v.0.48:
Cheap-jack \Cheap"-jack`\, Cheap-john \Cheap"-john`\, n. A seller of low-priced, shoddy, or second goods; a hawker. Syn: huckster, hawker, tout. [1913 Webster]WordNet (r) 3.0 (2006):
cheap-jack n 1: a seller of shoddy goods [syn: huckster, cheap-jack]