An internal mental fear that a person you’re in love with might be a different biological sex then they appear to be or claim to be.

This internal mental fear is not recognized as a disorder or phobia. At least not yet. For now, it’s a word that refers to the fear stated previously.
Michael: Hey Jack, you know Nancy?
Jack: The girl you like? Of course.
Michael: What if she’s actually a boy in disguise?
Jack: What kind of fucking drugs are you on?

Michael: I don’t know. I’m just... worried...

Frank: Michael, you have Suspendisse Delusion.
by The Random Dictioneer May 19, 2020
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