tear (one) limb from limb
To violently maim a person or animal. Typically used as a threat, rather than a description of an actual action. If I find out that you're the one who hurt my daughter, I will tear you limb from limb, understand?
tear someone limb from limb
If someone threatens to tear you limb from limb, they say they will kill you in a very violent way. It was lucky for him the police found him before I did because I would have torn him limb from limb.
tear someone limb from limb
violently dismember someone.