ride the cotton pony
English
Etymology
Sanitary pads are made from cotton, with the placement of the pad giving the image of "straddling" a pony".
Pronunciation
Audio (US): (file)
Verb
ride the cotton pony (third-person singular simple present rides the cotton pony, present participle riding the cotton pony, simple past rode the cotton pony, past participle ridden the cotton pony)
- (slang, euphemistic) To menstruate.