Definition & Meaning of "ace queen"in English

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

Ace queen is a slang term that appeared in mid-20th-century gay and drag subcultures to mock men who displayed effeminate behavior, appearance, or grooming. The term comes from playing-card imagery: "queen" suggests femininity, and "ace" may imply prominence or exaggeration, so together it highlighted a man's perceived flamboyance or lack of traditional masculinity. Historically, it was derogatory, often used to shame or belittle men within both gay and mainstream contexts. Today it is mostly historical, rarely used, and remains offensive if applied outside careful discussion of vintage slang.