Discrimination towards people of a different height, usually against people at the extremes of the height range, i.e: Extremely tall people or extremely short people.
Similar to racism but concerning height, not race.
To be sizeist is to be discriminatory in relation to height.
Same as sizism
Jack: I hate that guy, he's freakishly tall!
Jill: Don't be so sizeist!
Activist: Sizeism is wrong. Height should not be an important factor in judging a person.
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.