flaming (adj.) Look up flaming at Dictionary.com
intensifying adjective, late 19c., from present participle of flame (v.). Meaning "glaringly homosexual" is homosexual slang, 1970s (along with flamer (n.) "conspicuously homosexual man"); but flamer "glaringly conspicuous person or thing" (1809) and flaming "glaringly conspicuous" (1781) are much earlier in the general sense, both originally with reference to "wenches."