Definition & Meaning of "troonism"in English

What is the origin of the term "troonism" and how is it used?

Troonism is a slang or internet-coined term that refers to the belief in, practice of, or advocacy for transgender identity or transition. The word comes from "troon," itself a derogatory slang term for a transgender person, combined with the suffix "-ism" to imply a belief system or ideology. It first appeared in online communities in the 2010s, particularly in spaces hostile to trans people. The term is derogatory and offensive, used almost exclusively to mock, belittle, or stigmatize transgender individuals and their experiences. It is not a neutral or accepted descriptor and should only appear in critical or analytical discussion of anti-trans rhetoric.