A small town lesbian is a phrase used to describe a girl who comes from a mainly rural area who, though a nice girl, is clearly the elephant in the room. She comes from a mainly all white town with high morals so when you see her walking down the street with her short haircut and her man pants and man shirts and larger than normal muscles, the town's people don't mention it but they are all thinking how she is an outcast in their small town.
She is just a little too rough around the edges and thinks she is one of the boys, but really is not. Every town has one and it is always looked down upon.
Look at her with her ankle long skirts and man boots, she looks like a small town lesbian.
I'm inviting you to my party Sara, but don't dress like a small town lesbian!