Definition
'One-horse' is a descriptive term, typically used to describe a town or business, suggesting that it is small, insignificant, and lacking in resources or sophistication. It implies a place or operation that is outdated or underdeveloped. Think of a town so small that it only needs one horse to do all the work. 'One-horse' is often used in a derogatory way, indicating a lack of ambition or progress. It's a way of saying something is behind the times. The phrase is somewhat old fashioned itself.