In Spain, it is called so vulgar quot; quot jar; to the head. Hence, youth slang use this expression to mean that someone is wrong of the head, which is a fool.
Colloquial verbal phrase which means not o.k. the Chola, not be well head, be mentally unbalanced, be stunned momentary or definitively, act in an inappropriate way in any situation.
It is to be a person very bad head. It is a mental state in which the person may suffer transient loss of memory or difilcutad to remember; You can also have frequent slip.
Locutiva verbal periphrasis. Applies to people who are poor rational, intellectually. Be crazy. Not be well in the head. It is clear metaphorical expression, where '' head '' It is a real term, changed by the imaginary '' jar ''.