What is a one horse town?
A one-horse town is a small and unimportant town (e.g., “It’s a one-horse town that doesn’t even have a movie theater”).
Like most expressions containing the word town or city, you can’t use the two words interchangeably in the phrase “one-horse town.”
If you need a synonym for “one-horse town,” why not use QuillBot’s free Paraphraser to help you?