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1.
Used to describe lack of quality.
Esto es una porqueria.

Usted es una porqueria.

Hablas porquerias.
by Daylene LiNa January 28, 2008
 
2.
Spanish for "crap." Literally, crap/filth within a pigsty.
"Esto es una porqueria." -- This is pig crap.

"No hables porqueria." -- Don't talk crap.
by thisistits September 11, 2009