grandma panties

the huge saggy underwear, that your grandma, mom, or even you wear.

my grandma was wearing her grandma panties to the store.

by swimmy761 January 1, 2004

empty as your grandma's panties

To be out of money; when one's wallet is void of currency.

Aaron: Hey Brian, you want me to get you a Cherry-Pepsi?
Brian: Sorry bud, check out my wallet...it's as empty as your Grandma's panties.

by Hoon35 May 24, 2006