Sarcastic humour involves the use of irony, mockery, and ridicule to convey a sarcastic tone. Synonyms for sarcastic humour include sardonic wit, caustic wit, biting humour, acerbic wit, dry humour, and cutting sarcasm. Sardonic wit refers to a form of humour that is bitter and scornful. Caustic wit is humour that can be corrosive and cutting in nature. Biting humour implies a form of humour that is harsh and critical. Acerbic wit refers to a type of humour that is sharp and sarcastic. Dry humour is witty without being obvious. Finally, cutting sarcasm is humour that is intended to hurt or offend.