F&M
A quick way to write 'male or female' when you're talking to strangers. It's like you're playing a game and you're trying to win.
He said, 'Are you F or M?' I said, 'I'm a robot.'
She said, 'Are you F or M?' I said, 'I'm a donut.'
He said, 'Are you F or M?' I said, 'I'm a ghost.'