Do your balls hang low? Do they swing to and fro?
Can you tie 'em in a knot? Can you tie 'em in a bow?
Can you throw 'em o'er your shoulder like a Continental soldier?
Can you do the double shuffle when your balls hang low?
I always thought of "swag" as free promotional merchandise, such as logowear tshirts and baseball caps. Anyway, The Hiphop Nation have co-opted the word now.