1 definition by DianaC

A very misbehaved cat.
Short for MUGATO, the term moog refers to any cat that is fat, sheds a lot, humps too much, scratches furniture, or is otherwise terrible.
This term, however, has more recently been used to describe all cats, even the better behaved sort.
Person 1: What's up? Wanna go hang out?
Person 2: Can't, my stupid moog just shredded up all my clothes, let out a huge dump, and pretty much ruined my whole life.
by DianaC August 15, 2006
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