Sarcasm

[Urooj.Zafar]

It is a sentence or a comment that is said on order to hurt someone or to make fun of someone.
it is basically an ironic statement that means totally opposite of what one is saying (in order to embarrass, hurt or make fun)

[Lanell]

A tongue of which the user speaks of something the complete opposite of what the user means. It often has the best comedic value.

[Rihanna]

the bastard stepchild of irony

[Jason Yan]

Your bodys natural defense against stupid.

[Julian]

A word that gives you the possibility to play with your imagination when asked stupid questions.

[Cami]

Something that nobody on the internet can ever recognize.

[Hina Muqadas]

The ability to insult idiots without them realizing it.

[Raeanne Dimick]

Gods gift to man.
Incredibly humourous if used correctly.

[Jessica]

Noun. A very British form of humour which derives laughs from saying something while really meaning something else. Often (though not always, contrary to popular belief) used in scathing remarks.
The word Sarcasm is derived from a Greek word meaning tearing flesh, which is why sarcastic vegetarians are so ironic.
See also [irony].

[Jason Yan]

A verbal reflex against stupidity. In my opinion one of the best types of humour.

[Hina Muqadas]

When one says something, but usually means the opposite.
Used sometimes in order to belittle someone and make them seem retarded... or equally to amuse and impress them with your mind. Indeed.