What is the definition of a "Best Friend"

I am still awake in the middle of the night, possibly because i do not know what to anymore and just writing this before i sleep, so i got me thinking after watching "gossip girls", what is the the definition of a best friend?Do they mean that when they fight, mock each other but ending up forgiving each other and finally moved on to the next drama?Do they still hang out with each other, spending quality time during lunch breaks and class sessions but never actually talk about their problems underneath all of that?Or is just a happy go lucky naive friendship?

I can't help to wonder can i actually call the friends i have now as best friends?Cause i really do not know the real definition of best friends, i mean sure they are all the qualities that i had stated but which one is true?I can call them close friends though, and i can say that proudly. Maybe in a friendship what i am looking for is not the amount of time you spend with each other in classes or lunch breaks, i do not think a friendship is basely judged to the amount you company a friend in school because you are just going the same way and that you spend time hanging out with them because everyone hates you. I do think a friendship is the quality of knowing each other, having them to be able to accept and see through your flaws, you imperfections and to be able to use that quality to make you know that it is a part of your self and not exploiting in for their benefit. They are those people who would know you are not okay without even you telling them that you're not "fine". But what the heck?Everyone has a different opinion right?This is just the way i perceived it, at first, on the outer surface you can see two people being best friends but in reality, they back stab each other, lie and deceive you even maybe its for your own goodness but still it hurts...Well thats i learned in Binus. I see a friendship of a quality that i still have to learn:)

Anyways i'm tired so i should sleep, night.