flaming (adj.)

late 14c., "flame-like in appearance;" c. 1400, "on fire," present-participle adjective from flame (v.). Meaning "of bright or gaudy colors" is from mid-15c. As an intensifying adjective, late 19c. 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 a general sense, both originally with reference to "wenches." Related: Flamingly.

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Definitions of flaming from WordNet
flaming (adj.)
informal intensifiers;
you flaming idiot
Synonyms: bally / blinking / bloody / blooming / crashing / fucking
flaming (adj.)
very intense;
flaming passions
Synonyms: fiery
flaming (n.)
the process of combustion of inflammable materials producing heat and light and (often) smoke;
Synonyms: fire / flame