Very large underwear - Normally worn by complete and utter fat bastards
By gawd look at his big undies
by toe October 21, 2003
Get the big undies mug.
Referring to the overweight or obese female community.
"Based on his last three girlfriends, I think it's safe to say Steve's into big undies."
by STsSaveTime March 12, 2009
Get the Big undies mug.