A person's left-over swag that you acquire when you are around them all the time and/or are very close friends with.
ex: I don't know what swag is 'cause I'm white, but I think I have some, 'cause I'm with him. And he's black. And he has swag. So I have his cold-pizza swag.
Emily: I don't know what swag is.
Me: I don't either. I think I might have some.
Emily: I think I have the smallest amount of possible swag .. cause I'm with Cody. I have his left over swag.
Me: So you have his cold-pizza swag.