The feeling one has when one is in a particularly bad mood about wither nothing or something. It doesn't matter. You are feeling borderline homicidal. Ideas of stabbing things to relieve the seething anger come to mind.. Then you get distrated or blog about it and it goes away.
I was cut off many times today on my way to work, then I spilled coffee on my white shirt. It would be a bad idea to piss me off today because I am feeling stabby right now.