* Sharp-witted: Their comments are clever and often witty, but can also be cutting.
* Satirical: They use humor to point out flaws or inconsistencies, often in a biting way.
* Sarcastic: Their words might have a hidden meaning, often intending to mock or belittle.
* Direct: They don't shy away from saying what they think, even if it's unpleasant.
Examples:
* "The comedian was known for his tart-tongued humor, which often made audiences laugh and gasp in equal measure."
* "Her tart-tongued remarks about the politician's policies quickly silenced the room."
* "Despite her tart tongue, she was fiercely loyal to her friends."
Essentially, a tart-tongued person is someone who isn't afraid to use their words to be sharp and critical, sometimes even hurtful. While it can be a negative trait, it can also be a sign of intelligence, wit, and honesty.