1. One who is too involved with their own life to care about yours
2. One who thinks their life is more important then yours
3. One who would rather
see you miserable then
happy
4. One who takes
joy in stripping you of your dignity, self esteam,
joy (basically anything good)
5. A complete and total asshole. Beyond the realm of bastard or shithead; a shitstain is a title given to those not only showing exceptional skill in being a total prick, but taking above-average enjoyment in their low level of intellegence.