bad taste in one's mouth English

Meaning bad taste in one's mouth meaning

What does bad taste in one's mouth mean?

bad taste in one's mouth noun

— (idiomatic) A feeling something is morally despicable as to cause nausea.

— (idiomatic) A feeling of guilt, responsibility, or embarrassment as to cause nausea.

— (idiomatic) A feeling of disappointment and frustration.