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get someone's dander upand get someone's back up; get someone's hackles up; get someone's Irish up; put someone's back up
Fig. to make someone get angry. (Fixed order.) Now, don't get your dander up. Calm down. I insulted him and really got his hackles up. Bob had his Irish up all day yesterday. I don't know what was wrong. Now, now, don't get your back up. I didn't mean any harm.
luck of the Irish
luck associated with the Irish people. (Also said as a catch phrase for any kind of luck.) Bill: How did you manage to do it, Jeff. Jeff: It's the luck of the Irish, I guess.
luck of the devil
Also, luck of the Irish. Extraordinarily good fortune, as in You've the luck of the devil-that ball landed just on the line, or Winning the lottery-that's the luck of the Irish. These superstitious attributions of good fortune date from the first half of the 1900s.