What is the Full Form of BRB ?

BRB - Be Right Back

"Be Right Back" is a phrase used as an acronym while chatting in Yahoo Messenger, Facebook, gmail or other IMs. It is used to represent a situation in which we want to tell the other person "I will return to this conversation shortly".

Like in Chatting

Person 1 : Hi!
Person 2 : Hi
// Some lines of chat
..................
..................
Person 1 : I need to go to temple
Person 1 : BRB
Person 2 : ok

This kind of situation comes very frequently in online conversation, so "Be Right Back" as an acronym is very popular in many languages.