white assumption
An assumption among some white individuals that all other white people share the same stereotypes about other races and/or racist views. This assumption leads said individuals to believe that is socially acceptable to make stereotypical and racist comments and jokes about other races to and in front of any other white individual.
Mark: "Man, I could not live in your apartment complex. You're like the only white guy that lives there and I own a lot of high-end electronics."
Andrew: "Dude, not only do you possess the white assumption, but didn't your car get broken into in YOUR apartment complex?"
Andrew: "Dude, not only do you possess the white assumption, but didn't your car get broken into in YOUR apartment complex?"