The stereotypical temper of the Irish, and those of Irish descent. Most often somewhat unexpected, extremely passionate, and very short-lived.
Patrick O'MacPatrick: Hey, I'm sorry I flipped out at you dude.
Joe Smith: What?! You were screaming at me just five minutes ago!
Patrick: I told you I was sorry!
Joe: You threw the TV at me!
Patrick: It's just my Irish temper, you know?