Definition of mutton fat in US English:

mutton fat

noun

  • The fat obtained from mutton; a candle made of this fat.

adjective

  • (Frequently hyphenated.) Designating or relating to jade of a translucent creamy white colour, highly prized by collectors.

Origin

Early 18th century; earliest use found in John Nott (fl. 1723–1733). From mutton + fat.

Pronunciation

mutton fat

/ˈmʌtn fat/