Best definition
worst friend
The furthest thing from a best friend, but somehow not an enemy.
Even though you sometimes want to wrap your hands

around their neck, you find yourself still trying to get along with them because you have something in common, and you keep hoping against hope that they’ll stop being a jerk.
Easily distinguished from an enemy or a complete stranger because you personally care if they get hurt or need something, even though you wish you didn’t.

Joe, after conversation with John: That guy really pisses me off. I asked him if he needed help and he got angry at me.

Jim: Why do you keep talking to him, then?

Joe: I don’t know, we have similar interests.

Jim: He’s an idiot!

Joe: …Yeah, but he’s my worst friend, man. Don’t hate on him, he can’t help being a jerk.
worst friend: define #2
worst friend
someone who’s your friend but alway act like a dick
1- djo is such a faggot he’s alway acting like a dick with is friend, he’s really the worst friend you can have
worst friend: define #3
worst friend
the friend who is trouble maker and use others as a shield to hide their mistakes, they are one of most lousy, pathetic and useless bum
maxi is the worst friend you can have because she is a trouble maker and useless bum.