The ultimate encouragement used to help brighten an individual and/or group of individuals mood(s) and/or attitude(s). Also used as a "lets do this!" or a "I'm ready!" kind of phrase.
Dude I just failed my test man. Its cool bro, boom revs! You'll get it next time!
You good man? You ready? Boom what? Revs dude revs, lets do this!
C'mon man boom revs.