To rotate or twist the head or neck from its normal position.
2.
SpainLatin Americacolloquial
To inflict severe physical harm on someone's head or neck, or to threaten such harm; used colloquially to indicate violent punishment or decisive physical subjugation.
Examples:
ES: Podría torcer la cabeza de tu Ursus antes de saber qué lo tocó.
EN: He could twist the head off your Ursus before he knew what touched him.
ES: Pero muy pronto, a ese gatito le van a torcer la cabeza.
EN: But pretty soon, that kitten is gonna get his head twisted off.