Haha, had this friend who was a bit into logic and they came up with the following.

1. It's true that a person is either male or not a male.

2. It's also true that a person is either female or not female.

3. So there are four different and not exclusionary combinations:

A. A male and not a female

B. Not a male and a female

C. A male and a female

D. Not a male and not a female

And then they just said "I'm the fourth"

Edit: yeah, should've said that I wasn't familiar with the non binary category at all

Not the same thing but I recently saw a post where someone described their asexuality as “Shagnostic” and that made me giggle a bit

Swarm of bees

Post menopausal women described herself as woman emeritus. She had a wicked sense of humor.

Eldritch horror beyond mortal comprehension

This bit of poetry from Andrea Gibson (they):

I explain my gender by saying I am happiest on the road when I'm not here or there, but in between, that yellow line coming down the center of it all like a goddamn sunbeam.

I've been describing my experience as "transmasc transfemme". Being bigender is weird and beautiful.