Definition & Meaning of "butthead"in English

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

"Butthead" is an English vulgar slang term that appeared in the mid-20th century, likely in the 1960s–1970s. It combines "butt," referring to the buttocks, with "head" to create a crude, humorous image meant to insult someone's intelligence or behavior. The term is used to describe a person who is acting stupid, annoying, or foolish, often in informal, teasing, or confrontational contexts. It is mildly to moderately offensive and vulgar, typically aimed at mocking or criticizing someone, and is not suitable for formal or polite conversation.