'Cheap'

Story: http://glpo.st/1iGHUey Cheap (adj). An insult directed toward someone acting inappropriately. Likely developed this meaning from the common belief that people of low socioeconomic levels are more likely to behave in a crass manner. Often directed at men who are hitting on uninterested women to let them know their behavior is unwanted. For example: "Stop that; you're being really cheap right now."