jack-in-the-boxEnglishMerriam-Webster Dictionaryjack-in-the-box noun \ ˈjak-ən-t͟hə-ˌbäks \ a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raised plural jack-in-the-boxes or jacks-in-the-box Definition : a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raisedFirst Known Use1659, in the meaning defined abovejack-in-the-box noun \ ˈjak-ən-t͟hə-ˌbäks \ a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raised plural jack-in-the-boxes or jacks-in-the-box Definition : a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raisedFirst Known Use1659, in the meaning defined abovejack-in-the-box noun \ ˈjak-ən-t͟hə-ˌbäks \ a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raised plural jack-in-the-boxes or jacks-in-the-box Definition : a toy consisting of a small box out of which a figure (as of a clown's head) springs when the lid is raisedFirst Known Use1659, in the meaning defined above