Definition & Meaning of "tithead"in English

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

"Tithead" is a slang term for a person considered stupid or slow-witted. It appeared in English in the mid-20th century, combining "tit," a vulgar term often used to insult or belittle, with "head" to target the person directly. The term is used in informal, mocking, or joking contexts among peers. It is mildly vulgar and derogatory, never neutral, and conveys criticism of someone's intelligence or judgment.