When a woman is more attractive with a bag over her head than without.
"Dude, see that chick over there?"
"Yeah?"
"I'd give her face a 3 and her body an 8."
"I guess she has paper bag swag."
a back pack with an aztec design in which a male of female will carry on their back. person should walk wth general swagger whilst carrying a super cool swag bag. they can be purchased from topman/topshop.
"hey dude,youve got a 'super cool swag bag"
"have you heard about dans super cool swag bag?"
"i would like a super cool swag bag"