big fat

Adjective

big fat (not comparable)

1. (derogatory, idiomatic) Complete, utter, total.
   • He's a big fat idiot.
   • big fat zero big fat nothing big fat lie
2. (colloquial, idiomatic) Huge, colossal.
   • I know a society who will pay you a big fat sum if you'll sign over them eyes for post-mortem laboratory work.1918, Fannie Hurst, "A Petal on the Current" (collected in Humoresque, 1919), in Cosmopolitan, vol. 65, p. 42
   • [Porkypine:] Why, it's a big fat honor... They'll speech at you an' feed you chicken foot stew an'...
     [Pogo:] But I don't like to listen to them speeches an' I don't care for chicken foots.
     [Porkypine:] If yo' public is gone give you honor, son, they isn't gone let yo' personal taste stand in the...1952, Walt Kelly, Pogo, 25 August 1952 strip

   Synonyms:

   jumbo, king-sized, mammoth

3. Used other than figuratively or idiomatically: see big, fat.
   • The suspect was a big fat man with a shabby appearance.