I have a postcard on my bookcase I bought more than 30 years ago on a trip to New Orleans. It shows what appears to be a woman in a short dress, wearing high heals, standing at a urinal, using it like a man. The man next to her is giving her a look. I bought it because it was funny and it relates to the plumbing world.
Looking at the postcard, you don’t know if it is a man or a woman, although he/she appears to be holding the male anatomy while using the urinal. If it is a man, he could be a transvestite, a transgender person or someone dressed up for Mardi Gras. There is no way to tell. I guess that is what makes the postcard so funny; it confuses you.