Have the nerve to do something - Idioms by The Free Dictionary
have the nerve to do something
have the nerve to (do something)
To have the will to do something bold, daring, or impudent. Wow, I can't believe that intern had the nerve to ask for a raise on her first day!
have the nerve to do something (British English also have the face to do something) (informal) do something that other people think is rude or not appropriate without feeling embarrassed or ashamed: He had the nerve to ask me for a pay rise after only three weeks in the job. ♢ I don’t know how she’s got the face to criticize my designs. She doesn’t know anything at all about architecture.