adj: between sober and falling-down
drunk (guess based on context). Subject has consumed some
alcohol, is buzzed, rowdy, having a good time.
heard in the raunchy, bawdy performances of John Valby a.k.a.
Dr. Dirty, usually performed live at bars.
Oh, you guys in the second
set are half in the bag, you can't remember
shit. (when the audience forgets
new lines of a singalong)