Adjective

1. Impudent; impertinent.
   • 1899, Rudyard Kipling, Stalky & Co., ch. 4:

     "Shut up," said Harrison. "You chaps always behave as if you were jawin' us when we come to jaw you."

     "You're a lot too cheeky," said Craye.

   • 1909, P. G. Wodehouse, The Swoop! or How Clarence Saved England, ch. 7:

     The Young Turks, as might have been expected, wrote in their customary flippant, cheeky style.