Top Definition
The beginning of a woman's period, where she begins "spotting."
Girl 1: Oww, I'm starting to get cramps.
Girl 2: Uh oh, you starting your period?
Girl 1: Yeah, do you have a tampon? It looks like I'm chumming the water. Shark week starts real soon!
by Chris Raven Jr. July 28, 2009
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