gab /ɡæb/ BrE AmE verb ( past tense and past participle gabbed , present participle gabbing ) [intransitive + about] informal
[ Date: 1700-1800 ; Origin: Probably from gabble ]
to talk continuously, usually about things that are not important:
You two were gabbing so much you didn’t even see me!
—gabby adjective
⇨ the gift of the gab at ↑ gift (5)