A person who tries overly hard to be cool. (someone cool is just cool, they don't have to try) Also known as the pretty-boy poser. He's that guy or that group of guys who all look the same because they follow the latest trend. They appear almost metrosexual but aren't. The only sense of style they have is from what they see in magazines or what they see everyone else wear. They will let on that they were the ones who came up with that style first.
Someone who posts on an internetmessage board about how awesome they are and puts everyone else down, and then turns out to be a smacktard with a unibrow who isn't half as cool as he thinks he is.
Man, that crazyhomy talks so much crap... he's such a douchebag!
"wow, that guy really screwed up as president. he started a war, caused thousands of deaths for no reason, and is generallythe worst presidentthis country has ever seen!"
"what a douchebag."
A person who has little intelligence and who constantly gets on people's nerves of no apparent reason. Typically cares about no one else and is overly confident. Downplays and ridicules others that are superior to himself/herself.
Karen is such a douchebag. She thinks and acts like she's better than Joanthan even though in real life, Jonathan is better and smarter than Karen.