Definitions by sd489

fat pants 

any pair of pants, where the wearer can feel comfortable and without worry about how they looked, only that they are the most comfortable pants ever.
fat pants may be: old, a size too large, or stretched from excessive use.

Before the movie started, all the girls prepared for girls' night by making popcorn, getting out ice cream, and putting on fat pants.

fat pants by sd489 December 27, 2005