A bogan is someone who wears a flag as a cape and has a sticker on their car that says "If you don't love it, leave." They name their kids Shaanayyia and Tieeagian. They chant sport slogans at war memorial services, have race riots and southern cross tattoos. They love mega churches and all you can eat restaurants.
Kind of like a redneck but with a McMansion in the outer suburbs.
http://www.thingsboganslike.wordpress.com/