Top Definition
A woman who goes from being awesome and friendly to a complete bitch faster than you can blink. In these women, it will seem almost as if a light switch is flipped inside of them and BAM! they will morph into bitchy bitches.
(In the weight room)

Girl coach: How was your night?!
Athlete: Great thanks for asking!
Girl coach: WHY AREN'T YOU DOING ANYTHING?! GET TO WORK DAMMIT! YOU'RE SQUATS ARE TERRIBLE!
Athlete (to fellow athlete): Coach is such a light-switch bitch.
by Alison Von October 17, 2010

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