high mucky-muck

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high mucky-muck

slang An especially important, influential, and authoritative person, especially someone who is overbearingly or arrogantly so. We're just waiting for the high mucky-muck to give us the green light before we get the project started. "All hail the high mucky-muck," Jerry muttered under his breath as the dictator's motorcade rolled by.
See also: high

high mucky-muck

(...ˈməkimək)
n. an important person; the person in charge. When the high mucky-mucks meet, they will decide what to do about the problem.
See also: high