This is what you make when a friend in your group who has no other friends and no one even likes asks you to hang out with them and you do so out of pity. However, he/she is only
tolerable if everyone else in your group comes over at the same time so the person gets placed in the background. This is reminiscent of a
children's story of the same name in which something
inedible (stone soup) becomes tolerable if everyone chips in.
"
Susan asked me to hang out with her on
Friday night. Can you and Matt come over so I don't have to
put up with her alone?"
"Yeah, we'll help you make some stone soup."