The name of a kickass song by Nirvana. The title was sarcastic and was also going to be the title of their final album in 1993, titled In Utero. This song's title is know very screwed up because Kurt was murdered in 1994.
A term that people that only care about themselves love to use.
Entitled person: Everything is about me, myself and I. Therefore, I deserve everything that you have, including your $20 million mansion, your super expensive supercar, your money and your children.
Rich person: You ain't getting shit and you can go fuck yourself.