When employed in figurative circumstances, it characterizes an individual's
proclivity towards acting like a piece of shit, wherein the
agglomeration of shit is consolidated, and subsequently coalesced into a wash of social faux pas,
truculent to the senses and to any relationship. Literally though, it merely describes any variation of a basin, filled with a chunky, effluvious, cleveland steamer.
I know this guy, and when I consider his poor
hygene, his flatulence, volatility, and his entirely-too-excessive
wanton, I come to terms with the fact that he is a tub of shit.