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1) The belief that body weight, size or type accounts for differences in human character or ability and that a particular body weight, size or type is superior to others.

2) Discrimination or prejudice based on body weight, size or type.
Sizist people are so threatened by fat civil rights activist, they make a point to insult fat people whenever they can, i.e. at the bottom of the previous definition.
by kbee March 30, 2005
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Aug 11 Word of the Day
You can tell by the way she walks, she got that WAP.

You can look at her face and tell she ain't got that WAP.
by Black Don August 06, 2020
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hate on cute little short girls for being small and cute.
HEY THATS SIZIST!"...."I'm real sizist and make fun of short girls.
by short girl. June 20, 2011
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