Definition & Meaning of "ass goblin"in English

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

Ass goblin is a slang term that appeared in late 20th-century English, primarily in crude, gay, or prison-related subcultures, to describe a person who enjoys or actively participates in anal sex. The term combines "ass" (anus) with "goblin," a mythical creature often imagined as mischievous or grotesque, creating a deliberately insulting and vulgar label. Historically, it was derogatory, used to mock, shame, or provoke, and it carries strong sexualized contempt. Today, it remains highly offensive and vulgar, and using it outside informal or subcultural contexts is likely to shock or insult.