1) To Make Fun Of Someones So-Called "Swagger"
2) Also Can Be Used To Exclaim Something
1) Looking At Facebook/Myspace Picture Damn This Guy Is A Poser Swagg Clown Mode Look @ Me I'm So Cool Because I'm Wearing Aeropostale Shirt With Sunglasses
Oh Look At Me I'm So Cool Because I'm Taking A Picture In A Mirror So You Can See The Camera ... Ect
2)Teacher: Shut Up John Looking Like Dave Chapple
You: Ohhhhhhhhhhhhhhhhhhhh Swaggg Clown :D