White boy slang to mean 'brother' or 'homie'. Used by white boys who want to seem ghetto or cool. Kids with white people privilege seem to use this slang quite often.
"Don't test me bruh"
by Shaniquathethird July 4, 2016
Get the Bruhmug. bruh is a word that has been used for over 50+ years and usually means a close or not so close friend. But it can also be a term that is used when somebody does something fucked up or embarrasses you.
"bruh why" or "what's up bruh"
by deez2u December 4, 2019
Get the bruhmug. 
A bruh moment is a certain moment that can last up to a minute. This moment happens when someone says "bruh" or "bruh moment" after something funny or serious happens. This may also be said after someone's recent tragedy.
by Bruhnaldo September 27, 2019
Get the Bruh Momentmug. The worst guy you could ever be friends with. He gives the best unconstructive criticism and his ignorance is like rocks in your shoes. He would do anything to see you miserable. If you have a Punk B.M. in your life, you're the unluckiest person in the world.
by Not Punk B.M. December 24, 2022
Get the Punk Bruh Momentmug.