As described in Rachael Yamagata's song "Sidedish Friend". A friend who you don't want to always hang out with you, but you want them when you call them. Someone to have as a friend only when it's good for you.
I don't want to hang out with you all the time, okay? You're not my friend, you're just a sidedish friend.
by AdamBMusic October 17, 2008
When someone you haven't spoken to in years sends you a friend request on Facebook, but doesn't bother to ever say "hello" or ask how you've been. When someone friend requests you on Facebook clearly only to increase their number of friends, and then there is no further contact.
"Man, this chick I went to high school with totally just did a drive by friending on me. She could at least say hi."
by Stop Drive By Friending January 23, 2009
People you are friends with only because you we're forced together for a long period of time. (i.e in a classroom or work space) You find them unreliable, they don't KNOW you, you don't know them even after all this time. You're personalities don't match yet you hang out and can talk with each other. If follows the "Friends you realize you were only friends with because you saw them 5 days a week” mentality.
Jeff talks to 10+ people 5 days a week but he is loney, they are all dead friends that would never be there for him when he needs them.
by Aldia September 24, 2016
Two really close good friends that hang out as if they were dating. People around call the two a couple because of they see the two flirt all the time. Yet, both individuals (hopefully both) know that they will never become anything more than merely best friends.
by beautifulhat78 October 03, 2007
A friend who you can lose contact with for months, or even years on end, but as soon as you see them again, it's like nothing has ever changed, and there's no awkwardness.
I hadn't seen Tom in years, but as soon as we met for coffee, it was like nothing had changed; he's such a good suspend-a-friend!
by tomsfriend October 12, 2009
Also Good Time Charlie
Yeah, Mike's my conditional friend. As long as I have an extra girl to throw at him, he'll hang around.
by Vee Are Are Schee May 07, 2004