(adj) the act of going out with the boys, innocently, but having the night turn out horribly wrong for one member of the group. This is typically because of over-drinking or general douche-baggery.
How was the Irish pub the other night? It was fine except that Mike brusted the whole damn thing...He had five beers and then puked on the dance floor. That guy cannot hold his booze.
Use this word when you are brain dead or really tired as a result of thinking too much. Brain and busted make up brusted.
Man I am really brusted, I have GOT to take a break!