A back-up friend
a friend you barely talk to, but they’re the first one you call when your main squad is either busy, gone, or too lazy to show up
They text you: 'Hey, I'm free!' You reply: 'Great! Let's go!' Then you realize you're the only one going to the mall.
They're the one who shows up to your sleepover and eats all the candy, then leaves before the fun starts.
They're the one who you call when your main friend is in the hospital, but then they take 3 hours to reply.