American, very informal an offensive way of describing poor white people who are not educated.
These are the poor white trash that the middle class don't want to know about.
white trash
noun an impoverished or anti-social white person or persons; originally, and still, the poverty-stricken white population of the southern US. Originally black usage; derogatory; abbreviates to 'trash' (rubbish) US, 1831
white trash
highly offensive A disparaging term for a white person, especially one of a lower socioeconomic class. The term is also used collectively.