go hang oneself

/ɡˌəʊ hˈaŋ wɒnsˈɛlf/

/ɡˌoʊ hˈæŋ wʌnsˈɛlf/

go hang oneself

used to show one's indifference toward one's actions or mood

Examples

1. Why don't you go hang yourself instead?

2. If you really think it's your prerogative to tell me how to run my business, then you can go hang yourself for all I care.