Top definition
Abbreviation for my brain right now- signals tiredness of the mind
Omg Kourtney, mbrn I can't even!” Shouted Kim over the speakers. “Ya Ik totes cray cray up in here,” replies Kourtney
by Joke Humbug Bawbee March 08, 2018
Happy St. Patties Day!
buy the domain for your cat vlog