wishbone

詳細解釋：

wish.bone

n.（名詞）
The forked bone anterior to the breastbone of most birds, formed by the fusion of the clavicles.
鳥胸的叉骨，如願骨：大多數鳥胸骨前部的叉形骨，因鎖骨合併形成的
Football An offensive formation in which the halfbacks are positioned behind and to the left and right of the fullback.
【橄欖球】 叉骨陣形：中衛布置在後面，位於進攻後衛左右的一種進攻隊形

來源：
[From the superstition that when two people pull the bone apart a wish will be fulfilled for the person who retains the longer piece]
[從迷信.當兩個人共同折斷一塊骨頭，持較長的一段的人就會如願以償.而來]