A hapless, clumsy shithead; someone scatalogically uncautious and careless who ends up with exactly what karma had laying in wait for him; a human being with a paper rectum who could potentially sneeze and spray a jet of Mexican molé sauce against the back wall of his undershorts.
1. "Dude, I've heard of 'don't trust that fart,' but this was more like, 'don't trust that sneeze.' Fucking shizzmungler left his underpants looking like Kurt Cobain on a Sunday morning."
2. "Nothing squishes my areolas with delight more than some shizzmungler doing the cha-cha and walking into an open manhole."