'pitchman' definitions:

Definition of 'pitchman'

From: WordNet
noun
An aggressive salesman who uses a fast line of talk to sell something
noun
Someone who travels about selling his wares (as on the streets or at carnivals) [syn: peddler, pedlar, packman, hawker, pitchman]

Synonyms of 'pitchman'

From: Moby Thesaurus