Artificial intelligent assistant

crack-headed

ˈcrack-headed, a.
  [See crack- 2.]
  = crack-brained, crazy.

1796 F. Burney Camilla v. iii, She likes our crack-headed old doctor. 1848 W. K. Kelly tr. L. Blanc's Hist. Ten Y. II. 395 What would you have me say to a crack-headed fellow like this?

Oxford English Dictionary

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