whenever something good happens to you, they're the FIRST ones you call.
you talk on the phone every night and play tap tap revenge 3.
You watch Documentarys on strong toddlers together and be complete douches together.
The person that doesnt tell even the pointless secrets and gives great advice.
Someone who pretty much knows you inside and out.
"kay, bro. even though i'll beat your ass"
"dude, if i tell you this. you can't tell anyone."
"promise bro, we're best friends."
2 Girl best friends: They do all the girly things together, no one says anything.
2 Boy best friends: They do all the boy stuff together, no one says anything.
1 Boy + 1 Girl best friends: They do boy and girl stuff, People says lots of stuff
Gun Man: I’m going to kill your best friend miss
Stu: No take me instead!
Your real, true best friend is your comfort zone.
In some cases, the two or more part doesn't apply. It is quite possible to be your own best friend.
You have ''in'' jokes that no one else can get, but you still find as funny as ever =) You don't have to pretend around them, they like you for who you are.