Leaving a conversation or room. Signifying a good bye.

In the homosexual world, a person who no longer hides in the closet and chooses to express him or herself openly in their sexuality

To reveal confidential, true, personal information about someone against their will and without their permission.
Someone who is outed usually experiences embarrassment, social stigma, loss of friends, income, and/or other negative consequences as a result of being outed.

1. Not being in
2. In baseball, when a player is deemed to sucked enough as to warrant more time in the dugout scratching his balls and slapping his fellow players on the ass (This being done in the most professional and non-threatening manner).
3. Being recognized as a homosexual or acknowledging oneself as a homosexual.
4. The end of a line of communication, usually when dealing with radios and walkie talkies.

Out is literally the opposite of "in".

In parts of Ireland "out" is also used as a slang term that reinforces the word that came before it. For instance, if a new TV show comes on and you dislike it, you might say "that show was bad out!". If you drink too much and have a hangover you feel "sick out".

Stating the intention of leaving in the immedate future.

Among musicians out means something bizarre.