antinouns
Antinouns (noun): A hypothetical set of linguistic constructs, such as: Hisn’t, Shisn’t, and Thesn’t, that serve as the opposite or antonym of pronouns and are commonly used as an alternative to gender pronouns.
John: My boss told me to update my email signature to include my pronouns. I told him I’d update it with my antinouns instead and listed myself as ‘Shisn’t’
Diane: Nice, I updated mine last week to be ‘Hisn’t’
Diane: Nice, I updated mine last week to be ‘Hisn’t’