What is sarcasm?

Sarcasm is a way (usually spoken) to hurt or belittle others by being mean.

It is usually done by using irony or understatement (or saying things that are obviously not true).

Note on sarcasm

Sarcasm is usually done when speaking. It is very difficult for people to notice sarcasm in written English.

Examples of sarcasm

Thanks, Einstein
(after a person says something stupid)

What a lovely day
(on seeing a rainy day)

Hmm, she’s a real looker
(about an ugly person)

Yeah, Dave, don’t work too hard
(to a lazy colleague)

This class is so fun I think I’m going to die
(about a boring class)