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Noun: jack-in-the-box (jack-in-the-boxes,jacks-in-the-box)  'ja-kin dhu,bóks
  1. Plaything consisting of a toy clown that jumps out of a box when the lid is opened

Derived forms: jacks-in-the-box, jack-in-the-boxes

Type of: plaything, toy

Encyclopedia: Jack-in-the-box