Definition & Meaning of "peckerhead"in English

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

Peckerhead is a slang term that appeared in mid-20th-century English to describe a stupid, irritating, or contemptible person. The term combines "pecker," a crude word for the penis or someone's head metaphorically, with "head," forming a playful but insulting label. Historically, it was derogatory and mocking, used to belittle or ridicule someone for foolishness or annoying behavior. Today it remains informal and insulting, generally used in casual, humorous, or aggressive contexts rather than polite or formal conversation.