/huy"muk'euh muk", -muk"euh muk'/ , n.
an important, influential, or high-ranking person, esp. one who is pompous or conceited.
Also, high-mucky-muck /huy"muk'ee muk", -muk"ee muk'/ , high-muckety-muck /huy"muk'i tee muk", -muk"i tee muk'/ . Also called muck-a-muck .
[ 1855-60; hayo makamak lit., plenty to eat, much food, perh. extended derisively to Indians of high status with much disposable wealth, as for potlatches; hayo hayo ten (the base of various measures with suffixes for specific countable nouns); mak ( a ) mak eat, food ma·ho·ma ( q- ) part of whale meat between blubber and flesh ]