Definition of "gab" in English

noun

1. Idle chatter.

2. The mouth or gob.

3. One of the open-forked ends of rods controlling reversing in early steam engines.

verb

1. (intransitive, obsolete) To jest; to tell lies in jest; exaggerate; lie.

2. (intransitive) To talk or chatter a lot, usually on trivial subjects.

3. (transitive, obsolete) To speak or tell falsely.