General terms:
* Sarcasm: This is the most common and general term for ironic remarks, often intended to mock or criticize.
* Cutting remark: This directly describes the sharp and hurtful nature of the remark.
* Barbs: This refers to pointed and often cruel remarks, like the barbs of a thorny plant.
* Satire: While more broadly referring to the use of humor, irony, exaggeration, or ridicule to expose and criticize people's stupidity or vices, it can also apply to specific cutting remarks.
More specific terms:
* Acid wit: This describes a sharp and biting sense of humor, often delivered with a detached and sarcastic tone.
* Snide: This term implies a mean-spirited and condescending tone, often accompanied by subtle sarcasm.
* Caustic: This emphasizes the biting and corrosive nature of the remark.
* Sardonic: This suggests a mocking and cynical tone, often accompanied by a sense of contempt.
The best word to use depends on the specific situation and the intended meaning.