What does Bro Tub mean?

Bro Tub meaning in Urban Dictionary

an occasion in which several bros sit in a hot spa and engage in Deep Bro Talk (A serious talk between two close male buddies, by which they talk about all the things taking place in their life currently. Deep bro speaks are sacred group meetings, and all sorts of things discussed during them is not informed to other people without having the various other's consent.) See Deep Bro Talk Definition.