Chatter away is a phrase that means to talk incessantly and often without purpose. The crossword solutions for this phrase are PRATE (5 letters), YAK (3 letters), GAB (3 letters), and JAW (3 letters). PRATE is an archaic word meaning to talk foolishly or excessively, while YAK is a slang term for talking at length. GAB is another slang term for talking, and JAW is a verb meaning to talk or discuss. All of these words can be used to describe the phrase chatter away.