Throbnopolis 

The sex capital of the world; See also Rio de Janeiro

Dude, I heard there are so many girls in Rio de Janeiro that it's a Throbnopolis!

Throbnopolis by Dan A. Carvey October 12, 2009

Threnopolis 

The metropolis you walk through in your thoughts whenever you feel sad without a reason.

Threnopolis visited me again last night. I wish it didn’t feel so familiar.

Threnopolis by nandicowashere July 1, 2025