Common meaning:

Fear of getting fat.

Hidden meaning of the Equity religion: 

Hatred of fat people by all thin people.

Discussion:

Equity teaches that all thin people hate all fat people. Believers understand that Western society promotes a systemic hatred toward fat people that needs to be disrupted.

The religion of Equity uses the suffix “phobia” in a very particular way. Instead of using it the normal way, as in arachnophobia, meaning the person fears spiders, it changes it to mean the person hates something. In Equity language, fatphobia no longer means that a person is afraid of getting fat, but that the person hates all fat people. This is then taken one step further into the belief that all thin people are fatphobic. So all thin people hate all fat people, and this is systemic within Western society.

The Equity believers do not believe in the biological or medical worlds. They will not listen to explanations of how large amounts of body fat can cause damage to other organs in the body. They already know, by faith, that the cause of the damage must be as a result of the oppressive thin people group.

Refusing to believe in medical knowledge will unfortunately kill many people.