A term of endearment used by bros to express their care for one another. Can be mixed with other terms for bros, such as bra, broski , or any other derivation of the word. It is usually used when said bro is caught up in the euphoria of being a bro with his fellow bros.
Bro 1: Hey Chad, this party rocks!!!
Bro 2: Thanks bro!
Bro 1: (to Chad) Bros to the Bros!!
Bro 1: Hey Brohans, I got these extra tickets to the Jack Johnson concert, y'all are coming with me.
Bro 2: Awesome!! Bro
Bro 3: Yes! I love Jack Johnson!
All three Bros: Bras to the Bras!!