Artificial intelligent assistant

dog-tired

dog-tired, a.
  [See dog n.1 19 d.]
  As tired as a dog after a long chase; extremely tired, tired out.

1809–12 M. Edgeworth Ennui vi. Wks. 1832 VI. 47 Wretched little dog-tired creatures. 1813 Jane Austen Lett. II. 211 It was 12 before we reached home. We were all dog-tired. 1861 Hughes Tom Brown at Oxf. iii, I'm dog-tired of driving and doing the High Street.

Oxford English Dictionary

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