Definitions by Miss Tappz

McFlashy Pants 

Someone who has too much underwear or butt crack showing. It can either be on purpose or on accident.

When my boyfriend sleeps, he is such a Mr. McFlashy Pants.
I am such a McFlashy Pants when I wear these hips huggers.

McFlashy Pants by Miss Tappz March 9, 2010