If you call your teacher a "dirty toad," you're going to get into trouble––she'll call you out on the slander. Slander is the act of making a false, negative spoken statement about someone.

In law, the word slander is contrasted with libel, which is the act of making a false written statement about someone. The noun slander is from Old French esclandre, escandle "scandal," from Late Latin scandalum "stumbling block, offense."

Definitions of slander

n words falsely spoken that damage the reputation of another

slanderous remarks or charges
Type of:
calumniation, calumny, defamation, hatchet job, obloquy, traducement
a false accusation of an offense or a malicious misrepresentation of someone's words or actions
speech act
the use of language to perform some act

n an abusive attack on a person's character or good name

aspersion, calumny, defamation, denigration
Type of:
strong criticism

v charge falsely or with malicious intent; attack the good name and reputation of someone

asperse, besmirch, calumniate, defame, denigrate, smear, smirch, sully
destroy or damage seriously, as of someone's reputation
print slanderous statements against
badmouth, drag through the mud, malign, traduce
speak unfavorably about
Type of:
accuse, charge
blame for, make a claim of wrongdoing or misbehavior against