n. discrimination or prejudice that is based on social class.
Douglas Harper's Etymology Dictionary
Usage examples of "classism".
It makes impossible all the sins of locality, all the errors that arise from being prisoned in one body and no other--as racism, sexism, classism, and of course and especially nationalism.
No matter what atrocity you commit, you can stake a claim for sympathy, moan about being a victim of racism, reverse racism, sexism, ageism, classism, prejudice against fat people, ugly people, dumb people, smart people.