piggy in the middle
noun UK uk/ˌpɪɡ.i ɪn ðə ˈmɪd.əl/ us/ˌpɪɡ.i ɪn ðə ˈmɪd.əl/
[ U ] (US keep away)小猪站中间，过顶传球（两人相互向对方扔球，另有一人站在中间试图抢球的游戏）
a game in which two people throw a ball to each other over the head of a person who stands between them and tries to catch it
[ C usually singular ]（夹在争吵双方中间）左右为难的人
someone who is in a difficult situation between two other people who are arguing