Synonyms for Chaffer (same or very similar meaning)
WordNet sense 1 (wrangle (over a price, terms of an agreement, etc.)):
haggle, huckster, higgleWordNet sense 2 (talk socially without exchanging too much information):
chat, chatter, chitchat, confab, confabulate, gossip, jaw, natter, visit, claver, chew the fat, shoot the breezeFrom the ODE community, based on WordNetadd/edit