If You're a Jerk & You Know it Clap Your Hands

Thanks to the New Boyz being a jerk is now popular. But what exactly is being a jerk?
Dictionary.com : a contemptibly naive, fatuous, foolish, or inconsequential person.
"So cocky with it..." as the New Boyz would say but is it something to really be proud about? What do people get out of treating other people like trash? Is being a jerk really worth the time, energy and damage? I guess maybe they get a sense of satisfaction, but I'm sure its only temporary. Here are a variety of jerks that I've witnessed:

Professional Jerk:
Instigator: Purposely and maliciously saying rude comments toward someone in front of a lot of people just to get a rise out of them. [they can dish it but can't take it]
Fence Straddlers: people who stir up trouble among friends due to jealousy, envy or for their own personal amusement. [ these people really ruin some tight bonds]
Crabs: People who call you a friend but try to pull you down so they can consider
you "beneath them". [they need reassurance of their confidence]
Knuck if You Buck: People who always try to fight and pop off for no reason. [GET OUT MY FACE HOE!]

Annoying Jerks
Pity Seekers: People who like to purposely bring down your good mood so they can be the
center of attention [Its ok to at least pretend that you're happy for someone, that way you can be a wannabe jerk]
Collegiate Jerk: A person that think they know everything about EVERYTHING. They thrive off correcting people or pointing out flaws. [probably to overshadow their own imperfections]
Passive Jerk: People who try to be a jerk on the sly so that people can still trust them. They show their jerkiness in very settle ways that may be hard to catch. [Kind of like an angel with devil horns]
Amnesia Jerks: People who always seem to forget what they said once before. They always change their story and break promises

Wannabe Jerk
Fakeness: Smiling, friendly gestures, unnecessary conversations with a person you hate.[Manners is one thing but keepin it real is also important]
Posers: People who don't speak or act like themselves when they are around their so-called friends. [if you can't be ypurself reevaluate your friendships]
Facebook Gangsta: People who are outgoing and bold on Facebook but act like you are invisible in person. [Nobody looks THAT different from their picture]
Defense Jerk: People who constantly befriend, take up for and make excuses for professional jerks. [ex. Oh he’s just a regular guy or She was just raised that way….[I don’t care who or what you are

Since being a jerk is so popular I'm sure more varieties will arise soon enough. Everything is fun and games until you get called out on it. I'm not sure if more people are becoming jerks to spite everyone else or if they are trying to accommodate the other jerks out there. Why can't we be civil to one or another? Maybe I'll add this to my research list :/