Commonly used to describe an angry, grumpy old boomer.
Also a descriptive term for those with a penchant for depositing their fists inside their own, or others, bottoms.
BOOMER: “You kids better get off my goddamn lawn, or I’ll ram my fist up your ass!”
MILLENNIAL: “Dude lets get outta here - this guy is a fucken shitbangle!”
a level of inebriation that extends well beyond that described as "shitfaced," such that bowel control is lost. Typically achieved by drinking on an empty stomach. The exact Blood Alcohol Content required to reach "shitpantsed" drunk is different for each set of bowels.