Sarcasm
From the Simple English Wikipedia, the free encyclopedia that anyone can change
Sarcasm is when someone says something, but means something else. They mean either the opposite of what they said, or that they disagree with what they just said. Sarcasm is different from lying because when a person is being sarcastic, the person listening is supposed to understand that the person speaking does not mean what they just said. If someone says something sarcastic, it is usually said in a tone of voice that tells the person listening that they are being sarcastic, or the person listening knows the person talking well enough that they understand that the person talking is being sarcastic. If their tone of voice is normal when they say something sarcastic, this is called deadpan or dry humor.