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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.
sizeism by mewslee37 April 30, 2008
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The discrimination or prejudice against people of an "abnormal" body size, whether it's height or weight.
"Look at that girl, she's so fat. How disgusting!"

"Look at that girl, she's so tall. How weird!"

These are examples of sizism.
Sizism by Devadance December 7, 2009
Related Words

Single sideism 

When you spent so much time allowing yourself to indulge your randomsearchophilia that you start to only believe the first articles you see on any topic. This can lead to misinformation and for pop culture myths to spread at a rapid-fire rate.
Friend 1: "I heard that Lady Gaga is a Satanist."

Friend 2: "Where did you hear that, because it's not true."

Friend 1: "It's gotta be. I read it when I was Googling."

Friend 2: "Dude, you're suffering from some serious single sideism."
Single sideism by Cosplay Gir September 11, 2010
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 sizist is to be discriminatory in relation to height.

Same as sizeism
Jack: I hate that guy, he's freakishly tall!
Jill: Don't be so sizist!

Activist: Sizism is wrong. Height should not be an important factor in judging a person.
sizism by mewslee37 April 30, 2008
A person that makes fun of or hates fat/large people. The extra fat upon a person's body discusses them.
Mother: Your friend David is so fat!
Son: Mom! You're such a sizeist.
Sizeist by katz94 June 17, 2010
The school wanted large pencil cases but nothing small, they are sizeist.
Sizeist by opheliadealia January 1, 2018
A 'sitist' is a person or entity (corporation, website etc) that discriminates against websites supporting such a person or entity, based on unfounded assumptions.
Jagex (the makers of the MMORPG, Runescape) doesn't recognise Zybez.net as a fansite for unfounded reasons (apparently there are bad advertisements on Zybez, which don't actually exist), therefore Jagex are examples of siteism, referred to as a sitist.
siteism by Nova Vita May 27, 2009