Top Definition
To be really trendy person who eats McDonalds a lot but still isn't fat.
Ms. J : Tyra you ain't McFabulous

Tyra: Yoyoyo is it cuz i'm fatttt???

Ms. J : You know it girl. yo big booty rock everywhere.
by Jesse, C.J. February 11, 2008
6 Words related to McFabulous

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