Cotton Pony 

A tampon

Damn bitch, why you so pissed off today, are you riding the cotton pony or some thing?

Cotton Pony by Global Fuckin Smoke October 1, 2003

cotton pony 

A maxi pad.

Maria can't come in the pool with us today, she's riding the cotton pony.

cotton pony by the cheshire kat October 3, 2008

Cotton pony 

On the rag.

Watch out for Hillary, she's riding the cotton pony again.

Cotton pony by Scottwax April 26, 2003

cotton-pony 

A ladies sanitary product

"I cant go swimming with you today, As I am riding the cotton-pony!".

cotton-pony by ChrisBling January 18, 2006

riding the cotton pony 

having a period; menstruating.

better put a plastic sheet on the sofa before thunderthighs sits down, she's riding the cotton pony.

riding the cotton pony by Dunky Oggins November 23, 2003

riding the cotton pony 

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.

riding the cotton pony by damedonna July 3, 2006

Riding the cotton pony 

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."

Riding the cotton pony by Spaceman564 January 19, 2012