What does "bad breath" mean?

Breath that produces an unpleasant or foul-smelling odor when exhaled.

What is a synonym for "bad breath"?

Common synonyms include: bad smell, bo, body odor, fetidity, fetidness, fetor.

noun, slang

noun, slang ·Moderate ·College level

Noun

1
Breath that produces an unpleasant or foul-smelling odor when exhaled. countable, informal, uncountable