CHOKEHOLD
chokehold, choke hold
(noun) a restraining hold; someone loops the arm around the neck of another person in a tight grip, usually from behind; “he grabbed the woman in a chokehold, demanded her cash and jewelry, and then fled”
stranglehold, chokehold, throttlehold
(noun) complete power over a person or situation; “corporations have a stranglehold on the media”; “the president applied a chokehold to labor disputes that inconvenienced the public”
Source: WordNet® 3.1
Etymology
Noun
chokehold (plural chokeholds)
(martial arts, wrestling) A grappling hold around the neck that cuts off the flow of air to the brain
(by extension) A strong and powerful grasp on something
Source: Wiktionary