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.
shart face
the shocked look on one's face as they realize they have not farted as they expected, but indeed sharted instead. shart face most commonly occurs during public sharts.
Dude I was talking to Sarah and I was really nervous and had to fart. But then I sharted and I had the worst shart face. Fuck.
Face shart
When you sneeze but don't have time to pull down your face mask, thus it goes everywhere inside your mask.
Face sharts are the worst; today I had to sneeze but my hands were full and I couldn't get my mask down in time.