Chaffer \Chaf"fer\, v. i. [imp. & p. p. {Chaffered}; p. pr. & vb. n. {Chaffering}.] [OE. chaffaren, fr. chaffare, chapfare, cheapfare, a bargaining. See {Chaffer}, n.] 1. To treat or dispute about a purchase; to bargain; to haggle or higgle; to negotiate. To chaffer for preferments with his gold. --Dryden. 2. To talk much and idly; to chatter. --Trench.