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                           general:: 
                            Phrase(s): cut one’s (own) throat 
Fig. [for someone] to bring about one’s (own) failure.  •  If I were to run for office, I’d just be cutting my throat.  •  Judges who take bribes are cutting their own throats.
                        
                        
 
                        
                            McGrawhill's American Idioms And Phrasal Verbs