Wikipedia-Weight stigma, also known as weightism, weight bias, and weight-based discrimination, is discrimination or stereotyping based on one's weight, especially very large or thin people. The term is amisnomer as the stigma arises from the condition of being obese or schadenfreude arising from the suffering from the disease, and not the mass of the individual stigmatized in this manner. Weight stigma reflects internalized attitudes towards the obese that affects how these people—the targets of bias—are treated.
A person who is stigmatized possesses a weight that leads to a devalued social identity, and is often ascribed stereotypes or other labels denoting a perceived deviance which can lead to prejudice and discrimination. Common, “weight-based”, stereotypes are that obese persons are lazy, lack self-discipline, and have poor willpower, but also possess defects of intelligence and character. Common weight-based stereotypes of non-obese persons are that non-obese persons are unattractive, anorexic, unhealthy, diet and/or exercise excessively. There is no experimental or scientific evidence to indicate that these stereotypes are true, although pervasive social portrayals of obesity create and reinforce biased attitudes.