E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Hell or Connaught (To).
This phrase, usually attributed to Cromwell, and common to the whole of Ireland, rose thus: When the settlers designed for Ireland asked the officers of James I. where they were to go, they were answered to Hell or Connaught, go where you like or where you may, but dont bother me about the matter.