English

Noun

nobody's fool ‎(usually uncountable, plural nobody's fools)

1. (set phrase) A person who is not easily deceived or victimized; one who is perceptive, clever, or thoroughly common-sensical.
   • 1910, Jack London, Theft: A Play In Four Acts, Characters:

     Also, he is nobody's fool. He possesses the brain and strength of character to play his part.

   • 1914, William MacLeod Raine, The Pirate of Panama, ch. 6:

     He was nobody's fool, and there was no doubt but he had very soon detected the trick his cousin had played upon him.

   • 1986 Jan. 18, Jack Anderson, "Dance: A Tribute to Jerome Robbins," New York Times (retrieved 12 May 2015):

     But one could tell from her assurance that she was nobody's fool and would stand for no nonsense.

   • 2003 Dec. 22, Roderic Dunnett, "Cecilia Bartoli: The singing pioneer," Independent (UK) (retrieved 12 May 2015):

     Yet her musical stature, and intelligence are undisputed: she is nobody's fool, and she remains, quite simply, a perfectionist.

See also

• suffer fools gladly