The art of appearing absolutely glamourous in one's most dirtiest and unflattering outfit, for example a pair of sweatpants and a faded hooded sweatshirt or t-shirt, while not having groomed or showered for at least a day.
Fem A: I don't understand why I'm getting the sideways glances even though I'm looking a mess today.
Fem B: It must be your bum glam. Dumb caddy b*tches.
Fem B: It must be your bum glam. Dumb caddy b*tches.
by Missy Mars April 7, 2011
Get the Bum Glammug.