Fry: Hey, as long as you don’t make me smell Uranus. (laughs)
Leela: I don’t get it.
Farnsworth: I’m sorry, Fry, but astronomers renamed Uranus in 2620 to end that stupid joke once and for all.
Fry: Oh. What’s it called now?
Farnsworth: Urectum.
If men are from Mars, and women are from Venus, then all the other gender identities are from Uranus.