[jack-in-the-box] n, pl jack-in-the-box.es or jacks-in-the-box (1702): a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raised
JACK-IN-THE-BOX
Meaning of JACK-IN-THE-BOX in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012