Hello Olga: BRB = an abbreviation for Be Right Back, usually. ---Warm Regards, Bruce

BRB means: either Be right back or Bathroom break. >Usually be right back. It's mostly used in chatting - through the internet, etc. Hope this helps!

Be Right Back=BRB... meaning I will be back in under 3 minutes, something has come up, and I must attend to it, but I will be with you shortly.... I will be right back....8]