Meaning Be back in a bit
Type Acronym
Popularity ★ ★ ★ ★ ★  Popular
Usage Online Only (chat, messaging, e-mail)

BBIAB means be back in a bit. It is an acronym that communicates that the user needs to step away from the computer for a moment, but will be back shortly.

BBIAB is commonly used in online chat or when gaming to pause or stop the conversation or game in order to do something else. It is similar to BRB but is meant for longer periods of absence.

Example "I'm going to watch the rest of the game on TV. BBIAB."
Updated June 28, 2016
Information from PC.net