Being hypnotised by the workings and doings of a female who you are sexually attracted to, to the point of accepting the same crappy outcomes of her senselessness.
When someone (usually male) is so pissed and angry that he can be compared to that of when a girl is angry during that time of the month (that being her menstrual cycle) leading them to do stupid things and becoming a douchebag and so forth.
After Miles was fired from his job he became so bitchpissed that he kicked his managerin the head and lit his car on fire.
An illness as defined by constant and incessant complaining, chronic fatigue, poor work ethic, inability to feel happiness, and refusal to engage in social interactions with peers.