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.
CUT ONE'S THROAT
Meaning of CUT ONE'S THROAT in English
American idioms English vocabulary. Английский словарь американских идиом. 2012