pinche in most latin countries is not a bad word only in mexico it is use as "worthless" and of course worthless is used in front of every bad word known in mexico.
in other latin countries it means to be cheap. or to be a pest/rascal(someone who is always bugging people)
in mexico: "pinche" puto = "worthless" fuck
in mexico: "pinche" cabron = "worthless" asshole/dick
in mexico: "pinche" hombre = "worthless" dude/man
other latin: roberto es tan pinche no pago = robert is so cheap he did not pay.
other latin: que pinche es robert solo molesta = Robert is a pest/rascal all he does is bug.