What Does Be Right Back (BRB) Mean?
“Be right back,” often abbreviated BRB, is a phrase that means that an internet users expects to be away from his or her keyboard for a short time. It is often used as a way to express politeness, so that other users do not wonder why a person is not saying anything for a while.
Techopedia Explains Be Right Back (BRB)
“Be right back,” or BRB, is bit of internet slang that means the user expects to be away from the keyboard for a short time, typically only a few minutes.