Definition & Meaning of "cockhead"in English

What is the origin of the term "cockhead" and how is it used?

"Cockhead" is a crude English slang term that emerged in the mid-20th century to describe a stupid, foolish, or contemptible person. It combines "cock," a vulgar term commonly used in insults, with "head," implying the person's mind or character, to create a blunt metaphor for someone seen as obnoxious or lacking sense. The term is used in informal, hostile, or jokingly aggressive contexts, such as arguments, casual insults, or online exchanges. It is clearly derogatory and vulgar, intended to demean or ridicule rather than to be neutral.