I think for me it means to react in a way that is bigger than what has happened. I often bring in past hurts or other things to the situation at hand. For example, my wife may something relatively harmless and I take it very personally. I have a tendency to assume people are trying to hurt me based on past experiences. Another example for me is if I'm upset about something in my life (doesn't really matter what) and my kids do something that bothers me and I yell at them. My anger isn't really at them, and I overreact because I'm already upset about something else and it just kind of comes out... Sometimes I can catch myself and often I can't. Good question, thanks for putting that out there!