IDIOMS

go hang

(intransitive, idiomatic) To be cursed; to be unworthy of notice or bother.

Example: 1611, William Shakespeare, The Tempest, Act II, Scene II:
  For she had a tongue with a tang,
Would cry to a sailor, 'Go hang!'
She loved not the savour of tar nor of pitch,
Yet a tailor might scratch her where'er she did itch.
Then to sea, boys, and let her go hang!
1898, Margaret Georgina Todd, Mona Maclean, Medical Student: A Novel[1], page 449:
  When Love is kind, cheerful, and free,
Love's sure to find welcome from me;
But when Love brings heartache and pang,
Tears and such things, Love may go hang!
1958, Macdonald Hastings, Cork in the Doghouse, page 97:
  "And your advice was to let the family go hang and to insure the dog heavily against accidents?"