-A twist on the word brah, or bruh, which is, itself, a twist on the word bro, or brother.
Bro: A slang term describing a homie, or friend. This shortening of the word brother is not always used to describe siblings, but can be used to address an individual with which one shares acquaintance. This word can, in turn, be used as an exclamatory statement to express shock, awe, astonishment, or sometimes, even as an expression of comradery.
Homie: Bro, Stacey told posted on facebook about how small my dick is!
Homie 2: BUH-RUH