Noun
a)In Chile, pinche is a flat wire hairpin with prongs that press close/together.
b)It is also used to describe the person one is flirting with.

Spanish-language expression meaning:
a) Kitchen boy. The guys who clean up the Chef's mess and scrub the frying pans and carry stuff around. In this context it's still used in Spain.
b) In Mexico, it's an all-purpose insult enhancer, which would be roughly equivalent to the use of *fucking* in English. If Jay (Silent Bob's hetero life mate) spoke Spanish, he would say *pinche* A LOT.
Pinche is strongly associated with cursing in Mexican Spanish and the very moment you use it gives you away as a Mexican national. So you pinches gringos take that into account if youre trying to pass for an Argentine or whatever.
c) In Mexico, it's also used as an adjective to describe something as insignificant, lousy, miserable or worthless.

Spanish for fuckin, to 'enhance' adjective, not sex

adj: fuck in Spanish (not sex, see: Coger, Chingar)

Lousy,as in good for nothing

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)

Mexican slang word, not used or understood in South America or other regions where conventional Spanish is spoken. It is a vulgarity or curse word, used to lay emphasis on a good or bad situation. It is used as an amplifier word.

Piňche is a strong word with a meaning encapsulating all of the following: wretched, rotten, damnable, no-good, foul, dastardly, despicable, ugly, miserable, disgusting, contemptible, detestable, deplorable, nasty, filthy, etc.

Piňche has recently enjoyed a break-out among White and Black Americans, and is being more and more used in American slang.

"Pinche" is not an SPANISH slang, it is a MEXICAN slang, which means that only mexicans use it. So not every spanish-castilian speaking contries recognize this word besides that they all know that again, it is used by MEXICANS.

It is a term that means, asshole, idiot, or useless person, objects or uncofortable situations.