cock-a-hoop
adjective/ˌkɒk ə ˈhuːp/
/ˌkɑːk ə ˈhuːp/
[not usually before noun] (informal)- cock-a-hoop (about/at/over something) very pleased and excited, especially about achieving something
- They’re all cock-a-hoop about winning the first game of the season.
Word Originmid 17th cent.: from the phrase set cock a hoop, of unknown origin, apparently denoting the action of turning on the tap and allowing liquor to flow (prior to a drinking session).
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cock-a-hoop