nounNorth American informal
A person in a position of authority, especially one who is overbearing or conceited.‘a high muck-a-muck at the CIA’
celebrity, famous person, very important person, personality, name, big name, famous name, household name, star, superstar, celebutante, leading light, mogul, giant, great, master, king, guru
- ‘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’ + ma˙ho˙maq- ‘choice wheatmeal’, with high substituted for hiyu.
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