ˈcut-throat , cut‧throat /ˈkʌtθrəʊt $ -θroʊt/ adjective [usually before noun]
a cut-throat activity or business involves people competing with each other in an unpleasant way:
Cut-throat competition is keeping prices low.
the cut-throat world of advertising

[TahlilGaran] Dictionary of Contemporary English ▲

cut throat
adj. Severe; intense; unrelenting.
There is cut-throat competition among the various software companies today.

[TahlilGaran] English Idioms Dictionary ▲

cut one's throat
• cut/slit one's (own) throat
experience certain failure, do something that will cause problems now or in the future
He is cutting his own throat if he doesn't make an effort to find a new job quickly.

The man cut his own throat when he suddenly quit his job.

[TahlilGaran] English Idioms Dictionary ▲

cut one's throat
v. phr., informal To spoil one's chances; ruin a person.
He cut his own throat by his carelessness.
The younger men in the company were cutting each other's throats in their eagerness to win success.
John cut Freddie's throat with Mary by telling her lies.

[TahlilGaran] English Idioms Dictionary ▲