Definition of cool one's heels in English:

cool one's heels

Be kept waiting.
More example sentences
  • Well, drivers will have to cool their heels in traffic.
  • The reporters who stay cool their heels in the lobby.
  • There we all were, cooling our heels in a hotel lobby waiting for our first appointments of the day.
See parent entry: cool

Definition of cool one's heels in:

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Word of the day internecine
Pronunciation: ˌintərˈnesēn
adjective
destructive to both sides in a conflict