The story
From Springtrap, the antagonist of the point-and-click survival horror video game Five Nights at Freddy's 3 (2015); Springtrap is an animatronic suit containing the mummified corpse of a man, William Afton, who was trapped and killed by the suit's spring locks due to a mechanical failure (malfunction).
Etymology from Wiktionary, CC BY-SA 4.0.