1. A little bastard who pisses you off.
2. Used when someone hits/insults you, etc.
3. A widely used insult.
4. A swear widely used when you're getting PWN'd by a computer game.
One who bums around all day smokes weed,plays zelda, cuts there to a wannabe guido even though they are jewish. They tend to leave there true friends for a group of low lives that failed everything and now need to skateboard, because they couldn't make it into any other sports... A fucker is really unpredictable and if you're not one of them it will be nearly impossible to understand there state of mind.
Paul: hey man whats Lukes problem lately, he's been ditching us alll the time