One who is so fat they can't sit on the toliet seat and has to sit on the bowl
Marlan Brando is a fattass.
by Levi Morris April 02, 2005
some one who eats non stop. thier idea of fun is eating... eating is there life they live to eat
taylor w is such a fattass, i spent the night at her house and she was like i kno what we can do and went to the fridge and got out a box of corn dogs and sed its snack time....
by pooop May 28, 2007

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