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Meaning of clippety-clop

clip•pe•ty-clop

Pronunciation: (klip'i-tē-klop'), [key]
— n.
  1. the sound struck by the hoofs of a horse trotting on pavement, or any staccato, rhythmic sound resembling it.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.