Definition: A friend who has no segnificant other.
1.) Your best friend, who contrary to you is single.
2.) Your boyfriend's /girlfrien's best friend, who is single and is out and about to catch a new girlfriend/boyfriend.
3.) Your or your boyfriend's/girlfriend's best friend who is single and is out and about you or your segnificant other even though you or your segnificant other are in a relationship.
4.) 2.)&3.) Combined. And possibly in front of you/your segnificant other.
5.) 2.),3.)&1.) Combined.
The single best friend.
1.) " Oh that's just Frank my single best friend."
Just a nice guy.
2.) "Hey, that's Perry, Paolo's best friend, he's nice, give him a shot!"
You are trying to help.
3.)"That's Ryan, could we go please, I just get really depressed when I see him, he has no boundaries and no morals."
You don't wanna remember.
4.)"We should leave now, I just saw Robin, he is the worst. Honestly, he pretends to be so nice... But in reality,... Oh come on just let us go... I really don't want to think about that trauma right now."
You sadly have to remember.
5.)"Urgh, that ****** little ******* **** does not even deserves a name, take me home honey so I can cry into your arms like a baby and you will tell me that everything will be alright, even though it will never be...."
You will never forget what he had done.
The single best friend .