'get one's Irish up' definitions:

Definition of 'get one's Irish up'

From: GCIDE
  • Irish \I*rish"\, n. sing. & pl.
  • 1. pl. The natives or inhabitants of Ireland, esp. the Celtic natives or their descendants. [1913 Webster]
  • 2. The language of the Irish; also called Irish Gaelic or the Hiberno-Celtic. [1913 Webster +PJC]
  • 3. An old game resembling backgammon. [1913 Webster]
  • get one's Irish up to become angry. [PJC] Irish American