What is the meaning of Gab?

Idle chatter.

The mouth or gob.

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

To jest; to tell lies in jest; exaggerate; lie.

To talk or chatter a lot, usually on trivial subjects.

To speak or tell falsely.

a large dove

joke

first/third-person singular past indicative of geban

mouth, jaws

yawn

gap

first/third-person singular preterite of geben

Source: wiktionary.org