also pig-in-the-middle
1.
Piggy-in-the-middle or pig-in-the-middle is a game in which two children throw a ball to each other and a child standing between them tries to catch it. (BRIT)
N-UNCOUNT
2.
If someone is ~ or pig-in-the-middle, they are unwillingly involved in a dispute between two people or groups. (BRIT)
N-SING: also no det