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A belief that people of the "heavy-set" variety are in some way inferior or less of a human.
-Creepy Chris said I couldnt see my own toes, he is a waistist.
-The fat kid farted in class, obviously because he is fat (waistist comment/belief)
-Who ate all the brownies, must have been fatty. (waistism)
-I'm sure you would like a cookie, fatty (waistism)
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1. Waist-based prejudice, violence, discrimination, or oppression of fat people.

2. Belief or ideology that skinny people are vastly superior to fat people.
"At the heart of waistism is the religious assertion that God made a creative mistake when He brought fat people into being"
by Solid Orange March 06, 2008
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