jack-in-the-box

jack-in-the-box
ˈjack-in-the-ˌbox noun [countable]
a children’s toy shaped like a box, with a figure inside that springs out when the box is opened

jack-in-the-boxBrE /ˈdʒæk ɪn ðə bɒks/ 🔊NAmE /ˈdʒæk ɪn ðə bɑːks/ 🔊 nouna toy in the shape of a box with a figure inside on a spring that jumps up when you open the lid 玩偶匣（揭开匣盖即有玩偶跳出）