Literally, Spanish slang for "bed-bug".
Among certain high school students in Tennessee, "chinche" is an expression that can universally be used in all circumstances as a reaction or interuption to anything.
"Oh man, you totally forgot Mrs. Tuttles research paper? Holy chinche!"
A state of reasoning that is completely opposite of logic or common human sense.
Dude, that makes no sense, it's totally wajical!