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1.
Orifeces (n, plr)

Excrement from one or more bodily orifices (or holes, for the less educated of ya').

There is no singular form of this word, since there is always more than one piece of orifeces at any given point in time.
Guy: Aww man! That expired salsa really gave me a stomach ache!
Friend: Damn dude, better not leave some orifeces in my house!
by danandmash. January 09, 2011