I'm All Set

if you never noticed it before, you sure as shit will now.  i hear it time after time, i cannot tell you how much in one year I have heard the phrase "I'm all set" uttered from a local's mouth.  They say it all the time; "You, all set?"  

Am I all set with what mother fucker?  What are you people talking about?  I think it is hilarious and I love to say it now.  I AM ALL SET.  Bitch.

It can be meant as an endearing term or a gesture of fuck you.  It can be said in anger or out of sheer sincerity.  I personally like to say it to everyone when I have had too much to drink.  

The phrase "I'm all set" can let a homeless person know you don't have any money and do not want to hear their pitch.

"I'm all set" can let a commission salesperson know that you do not want them to "bother" you or that you just want to purchase what you have already selected, not what they are about to show you.

"I'm all set" can let your waiter or waitress know that it is time to bring your check or possibly that you are completely finished with your meal.

"You guys all set?"  Can be asked when the party is ready to leave the establishment.

"You all set?" (and raised eyebrows) is meant as fighting words.

"You all set?" (with raised eyebrows and a flat hand gesture) can let your girlfriend know that you saw her flirting with that guy and that you will be breaking up with her in the car ride so she needs to be "all set" and get his number because you, on the other hand, are all set.

(this was taken from a true story, I actually observed this one first hand between the couple at a party)

It is a great ending to a fight.  It is the "Fuck you" of open ended questions.  It is a way to sound as though you are sincerely concerned while letting the opposite person know that you want them to pack their shit and leave, because then, and only then, will you, yourself, be all set.