look up any word, like smh:
A maxi pad.
Maria can't come in the pool with us today, she's riding the cotton pony.
by the cheshire kat August 07, 2008
A tampon
Damn bitch, why you so pissed off today, are you riding the cotton pony or some thing?
by Global Fuckin Smoke October 01, 2003
On the rag.
Watch out for Hillary, she's riding the cotton pony again.
by Scottwax April 26, 2003
A ladies sanitary product
"I cant go swimming with you today, As I am riding the cotton-pony!".
by ChrisBling January 18, 2006