Bro-Co or (broco & lime) is actually So Co & lime( Southern Comfort & lime juice). Its ordered by Bros .
At a state university bar/tavern : "Make me and my bros some Broco & Lime ,were going back to the frat house to parrtttaaayy! Got the new Jack Johnson , HI FIVES ! ! ! "
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.