5
The Egocentric Douchebag

The child who screams "Look at me! Look at me!" is all grown up and he can't wait to tell you about himself. You want to talk about the football game last night? He'll talk about how he quarterbacked his high school football team to the state championships. Wondering about a good place to grab a bite to eat? He'll tell you he can make reservations anywhere because he's the man. Concerned about poverty in Africa? Why the fuck do you care! This dude has banged like twenty models! Seriously, you're talking to a legend, and he'll be the first to remind you of this fact.
The Disorder:
Histrionic Personality Disorder or HDP. The disorder is characterized as an overwhelming desire to be noticed and willingness to engage in any attention-seeking behavior. This was the kid who was the first to jump off the high dive--if there was an audience to watch him.
These drama-queens know all the world's a stage, and they have been cast for lead role of MacD'bag. Those with HDP have a self-esteem that is dependent on the approval of others and they posses no clear concept of self worth. They're way more likely to lash out at criticism or disapproval than they should be. They'll flirt with anyone, any time. They tend to mistake any attention as sexual attraction ("I'm tellin' ya, she totally wants me, bro"). Their opinions are easily influenced by others, and they find it difficult to support them if pressed for details. They travel in packs.

The disease is not socially debilitating, since most sufferers maintain good networking skills, but they manipulate these relationships in a way that brings notice only to themselves. Thusly, sufferers of the disease tend to pass their suffering onto us.
4
The Weightlifting Douchebag

The only thing this man loves more than his own reflection is sleeveless t-shirts. Sure, we all wouldn't mind toning up or putting on some muscle, but this guy's artificially tanned muscles are his full-time job. After hearing the guy go on about it for 20 minutes or so, we don't feel so bad for putting a video game controller in our hands and watching our body turn to dough.
The Disorder:
Muscle Dysmorphia or what is commonly referred to as "Bigorexia". This mental illness is seen as a male inverse of anorexia, except this disease lands you in a sideshow for freaks instead of the fashion runway (Yes, we know not all top models are anorexics. Some just do coke). Researches believe that the roots of both self-perception disorders come in early adolescences. While girls are dreaming of lounging poolside in Barbie's dream house, men want to be tearing down Cobra's infantry as a G.I. Joe.
Seeing the sculpted action figures sets up an unattainable goal for some young men. They carry the notion of always being too "small" and "thin" into their adult years, after they've become rippling man-beasts. Let's all take a minute to thank the parents of these impressionable youths for going Joe instead of Ninja Turtles, or our society may presently be plagued with mutant reptilian half-breeds roaming the sewers. Media has also had its impact, parading images of perfect pecs and washboard abs. Who honestly thinks that stuff is attractive? Seriously.