bruh

Short phrase used to express user's ignorance, shame, amusement and/or awkwardness towards someone or themselves.

Mostly used by all these unintellectual little children aged up to 21 from the interwebs.

14 y/o white girl: bruh bruv bru
You who has a high level of IQ: This situation is getting out of hand. Can you please state your reason why are you constantly spitting this dumb phrase in random periods of time? This simply shows you have no experience of engaging a conversation and lack charisma and intelligence. Your barely vibrating vocal cords put no real effort into what you want say and by saying that you showcase how horrible your personality and skills of human interaction are. Over hundreds of thousands of words noted in the English dictionary, yet you chose these chimpanzee mating calls. I suggest your human brain to learn how to communicate and attribute your personality, then we might become good friends.
14 y/o white girl: wha- I- oop- br-
You who has a high level of IQ: Just by pronouncing these such sounds like a broken robot doesn't mean that it is possible for you to win the following argument. I'm still smarter than you, unless you get the motivation to outstrip my intelligence.
14 y/o white girl: brub burrbru bruw bro brurrh