Jack-in-the-box effect
The jack-in-the-box effect, also known as a turret toss, is a specific effect of a catastrophic kill on a warship, tank or other turreted armored vehicle in which an ammunition explosion causes the tank's turret to be violently blown off the chassis and into the air. It is named after the child's toy, the jack-in-the-box, in which a puppet pops up.