Falsely spoken words that tend to damage another person's reputation; defamation. The truth of such words is an absolute defense against slander. Unlike libel, unless the slander is defamatory per se, damages caused by slander must be proven by the plaintiff. See alsolibel. slander per quod. A form of slander that does not qualify as slander per se, thereby requiring the plaintiff to prove special damages. slander per se. A form of slander that need not be proven to qualify for damage, becaus...