Artificial intelligent assistant

pitter-litter

pitter-litter, adv. rare—1.
  (ˈpɪtə ˈlɪtə(r))
  [After pitter-patter n. (adv.)]
  = pitter-patter n. (adv.) 2 a.

1910 H. G. Wells New Machiavelli (1911) i. ii. 18 Dropped most satisfyingly down a brick shaft, and pitter-litter over some steep steps to where a head slaughterman strung a cotton loop round their legs.

Oxford English Dictionary

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