1. a curse or spell:
- I have known of people that have had the record of saying that they could put a bad mouth on you.
2. malicious gossip:
- Companies don’t want people telling their friends about shoddy products. Word of badmouth can kill them.
3. a person who speaks ill of people:
- The world is filled with bad-mouths. We need more caring people.
foul mouth—(also: dirty mouth) a person who uses obscene or abusive language habitually:
- Terry is turning into a real foul mouth.