Celest was looking through a kitchen drawer the other day, and she found a basting brush (which looks like a giant paint brush). Since I never have used it I told her she could play with it.
She got really happy, lifted it in the air, and announced, "This is my sanitary napkin!" She was so serious, even officious, as she made her pronouncement that I cracked up.
We've been working on puberty related issues, so I'm assuming that someone at school called a "pad" a "sanitary napkin". :)