shart-faced

Accidental inebriation. If "to shart" is the act of intending to fart but accidentally shitting yourself, and "shit-faced" is the state of being intoxicated, then it follows that "shart-faced" would be a condition of drunkenness reached only by accidental or unintentional means.

Honey, we only went out for a couple of beers but Mel kept ordering these little shots of blue shit and the next thing you know we're all completely shart-faced.