having a period; menstruating.
better put a plastic sheet on the sofa before thunderthighs sits down, she's riding the cotton pony.
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A term used to for a female having a period. It references using a tampon (the cotton pony).
I had cramps all day because I'm riding the cotton pony.
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when a woman is on her period.
"Why is she being such a bitch today?"
"I'm not sure, maybe she's riding the cotton pony."
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Menstrual cycle, period, time of month
a phase of the menstrual cycle in which the uterine lining is shed
Woman: No fun tonight
Man: Why?
Woman: Because Elmo Riding the Cotton Pony
Man: :(, I guess I just use this sock instead
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