Meaning

  1. The chamber of a steam engine, or a steam locomotive, in which the fuel is burned.
  2. The part of a fireplace where the fuel is burned.
  3. (slang, vulgar) A redheaded woman or her red pubic hair.

Synonyms

melting chamber

furnace chamber

furnace cavity

Etymology

From fire + box. In the sense of a redheaded woman, from box (“vagina”).

Notes

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