nounNorth American informal
- He also was the son of a high muck-a-muck in the Nixon administration so he could have had info to pass on before he got his job in the White House.
- I'm lunching with Josh Jones, one of the high muck-a-mucks of Dreamhost, the company that hosts this website on its massive servers.
Mid 19th century: perhaps from Chinook hiyu 'plenty' + muckamuck 'food', from Nootka ḥayo 'ten' + maṙhoṙmaq- 'choice wheatmeal', with high substituted for hiyu.
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Syllabification: high muck-a-muck
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