One who tries too hard to be cool.
Guy 1:My shoe laces? Versace!
Guy 1: My toilet paper? GUCCI!!
Guy 2: SWOG. You're trying too hard.
All credit to Nigahiga.
Guy 2: What's up, man?
Guy 1: Tight outfit bro.
Guy 2: You know I got swag.
Guy 2 is an example of swog by pretending or admitting that he has swag.
Ryan: That's not swag, if you have to say swag after something, it's swog.
D-Trix: My shoes. Versace. My laces. Versace. My toilet paper. Gucci.'