Virtue Boner
A virtue boner is an erection that occurs as the result of reading or hearing something that could possibly be interpreted as being prejudice or offensive to an at-risk group. Unlike traditional erections that are satiated by masturbation or sexual intercourse, the virtue boner can only be satisfied by smugly declaring your moral superiority over the transgressor and then gently snapping your fingers.
When Karen heard John say the gender pay gap isn't necessarily the result of gender discrimination, Karen got a huge virtue boner and got John fired for being a sexist.