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3.
Discrimation due to height or the lack of it
Guy 1;I hate that lanky bitch
guy 2;Why?
Guy 1:Cause shes tall
Guy 2;Your being heightist
by chesney ireland October 26, 2007
 
1.
Someone who believes that people are superior to or inferior to others on account of their respective heights, or that people of differing heights have different moral qualities and intellectual capabilities.
"Howard Dean is short. He probably has anger issues," opined the heightist talk show host.
by Orestes April 23, 2004
 
2.
An act, acts, or attitutes that seek to denigrate or discriminate against people of height.

The act of treating people of different physical stature as if they were essentially different.
"He's too short to play lead"
by Michael Calwell April 23, 2004
 
4.
When someone judges you because you are to tall or to short.
John was heightist because he made fun of Bob because he was too short.
by BoRedPhAntOm June 20, 2014