A person who holds a high influential position, either in the military realm, or in the private sector. A person of power, high rank, influence and high status.
The muckity-mucks of the Army hold so much position, rank and power that the term "Brass" has been obsolete for years.
by Alpha Female Wolf August 5, 2008

In Poker when you lose a hand, not sure what it means, can somebody elaborate? I think it means the act of throwing the cards face down out on the pile of loser hands.
by Wet Magic February 21, 2005

an American used to denote pompous, rich, stuffy, vainglorious, snobby aristocracy types who think they rule the world. Even if that is so, there are millions of planets orbiting millions of stars in this galaxy and in millions of galaxies, so the muckety-mucks can put that in their pipes and smoke it.
when I was eating at an Olive Garden in downtown Toronto, I asked this righteous babe of a waitress where the reputed Eaton mall was and what kind of people shop there. I had to define "muckety-mucks" to her since that term isn't used in Canada. I explained "fatcat", and had to define that word for her, too. She explained to me where I needed to go and remarked about my American vocabulary. We talked some more, then I payed the bill and laid down the tip and I was on my way.
by I Saw U2 Live Twice November 9, 2008

by Cully April 1, 2003

by SakuraSaku May 14, 2009

i. An autonomous animated lifeform, typically depicted visually, not limited to the third dimension, by the artist known as Jules Muck
by ALIVE ALIVE August 13, 2022

by Bootiga September 7, 2022
