High Quality Content by WIKIPEDIA articles! Pieing is the act of throwing a pie at a person or persons. This can be a political action when the target is an authority figure, politician, or celebrity and can be used as a means of protesting against the target`s political beliefs, or against perceived arrogance or vanity. Perpetrators generally regard the act as a form of ridicule to embarrass and humiliate the victim. In some U.S. states pieing may conform to definitions of the crime of battery, but not assault.