gab /ɡæb/ verb (gabbed, gabbing) [intransitiveI + about] informal TALK TO somebodyto talk continuously, usually about things that are not important 喋喋不休，闲聊 You two were gabbing so much you didn’t even see me! 你们俩聊得那么起劲，甚至都没有看到我！
—gabby adjectiveadj
→ the gift of the gab at gift1(5) gab• The night before the trip, we sisters stayed up late packing and gabbing.• They spend way too much time gabbing when they should be working.
From Longman Business Dictionary
GABGABFINANCE written abbreviation for GENERAL ARRANGEMENTS TO BORROW