This excuse, or others that justify behavior that they would find reprehensible in those who didn't attend college or voted republican, is actually only invoked to defend a very small amount of middle trash behavior. This occurs because a surprising volume of wasteful fads, terrible bands, classist vitriol or noxious political doublespeak are integral to a proud self-image, often as someone outside the mainstream or simply smarter, more interesting and better than other people.
Finally, middle trash can also describe various exploitative and anti-nuanced appropriations, such as ironically flashing gang signs or wearing a kimono.
My friend just bought five hundred dollar wheels to go on his middle trash fixed gear.
I just didn't like that the Chappelle's show was so popular with the Middle Trash.