When a person believes he has a high level of swag, but really has none.
Guy gets shot down by girl-
"Dude she wanted me, i'm so swagtastic."
"Dude she blew you off cause you wreak of swunger."
A Bad Ass Mother Fucker who don't play no fucking games, the realest son of a bitch you've ever met. The man who brings a new definition to keepin it real. See Russell
Damn, that's a real Seagroves right there