SWAG stands for Sex With Alex Gaskarth - frontman of All Time Low aka the coolest and sexiest man alive. he has awesome hair and he's super hot and he's got the voice of an angel. when you see him you get an incurable case of InstaBoner. the only person who truly has SWAG is Jack Barakat
Person 1: Man i wish i could have SWAG
Person 2: Yeah but you aren't jack barakat
Jack Barakat: I love swag
Thea Burrows is so swag. She radiates Swag. I think she even sweats swag.
"Hey have you heard of Thea Burrows?"
"Oh yeah, She is the walking, talking version of swag."
SwaG is swamp vag, as in swamp vagina, akin to swamp ass or swass. Otherwise known as a horrible vaginal odor. Unlike swag (swagger, free stuff, etc), SwaG is pronounced with a hard G (as in gentle).
After an afternoon of running errands and hitting the gym, my morbidly obese girlfriend developed some serious swaG, but that didn't stop me from gobbling on her moist stink-muffin.