Top Definition
An incredibly unpredictable man, or boy who is on an everyday basis calling you or stopping by your house to try to " Fix the problem" and doesn't understand what it means not to be together anymore.
Yesterday not only did I have 32 missed calls from him but my work told me he stopped by there to see if I was working. Yes, he is one Psycho Ex-Boyfriend
by Mary Jane Doe December 26, 2008
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