A poser, loser, wanna-be, f'tard who thinks they're being oh so cool on their new motorcycle or in their brand new mustang. they have "badass" hairstyles, and make loud noise when the situation doesn't call for it. they need attention and hope they'll get lucky with any girl that gives them a look of disgust. when you say cool-guy, you need to emphasize the double o's in the word. It ends up sounding like "coo-guy" but with a faint "L" at the end and make it sound really sarcastic. I don't fuckin care that you have a brand new Ducati, brand new Oakleys, and a "sexy" mohawk, you're only 15 years old you dumbass! You're not cool!
Kid 1: school was boring as hell today
Kid 2: I know, Calculus sucks...
Cool-Guy: (roars up the street on his motorcycle with his backpack on from the school day)
Kid 1: Cool-Guy right there, wish i could be like him
Kid 2: Fo sho, wish i was a Cool-Guy...what a loser