A shit that is so massive and repulsive that there is no possible hopes of flushing it, so it ends up brewing in the toilet for days on end. The longer the shitmonster brews the stronger it grows. A key ingredient to the shitmonster is piss that has accumulated from other roomates over the days. The shitmonster eventually reaches a stage when no one can tolerate the shitmonster and the room unites to once and for all defeat the dreaded shitmonster by going on a quest to unclog the toilet. It is imperative that the creator of the shitmonster extols the final blow and slays the shitmonster.

Originally discovered at the George Washington University, the worlds first shitmonster haunted a certain group of young men for weeks. It is unknown if it is the first actual shitmonster or the first recorded. WARNING: Some shit monsters may result in death, delusions, loss of smell sight and taste and all basic motor functions.
I can't be too sure guys, but I may have just layed a shitmonster in the toilet.
by ShitSlayer February 9, 2011
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"shitmonster" a stinking most probally old man who is surrounded by the smell of shit and dresses like a tramp and is just in a bad state
oh my god that old geezer is a shit monster look at him urgh!
by Ford farm massiv March 2, 2005
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