Definition & Meaning of "butt fuck"in English

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

"Butt fuck" is a slang term for anal intercourse that appeared in English in the mid-20th century, primarily in informal, sexual, or pornographic contexts. It combines "butt," a casual term for the anus, with "fuck," a vulgar term for sexual activity, creating a blunt and graphic description of anal sex. The term is used in casual, sexual, or joking conversations and is highly vulgar and explicit, never neutral, and inappropriate in polite or formal settings.