Used in an argument to admit that you are wrong without admitting it so the argument is over.

Passive-aggressive behavior at its most eloquent.

Uttered in a derisive and dismissive tone, in response to a confrontation or accusation which has been judged to be unimpressive, obnoxious, or disingenuous. Often used to dismiss someone when it is clear that rational discussion would be a waste of time and energy.

A polite and less vulgar alternative to "FUCK YOU".

The most annoying thing that your girlfriend can say.

I don't care.

Word all too often used by Americans to connotate a feeling of apathy. The fact that it's used in almost every sentence is not as alarming to many as it should be.