@hifromtomorrow's definitions
When you vomit, piss yourself and shit (shart) yourself all at the same time, due to being very drunk, stoned, or particularly, a combination of these two.
Mate, I was so wasted last night, a vompisshart hit me hard when I was trying to get out of my chair.
by @hifromtomorrow May 3, 2018
Get the Vompisshartmug.