(adj.) Possibly the worst word you can have your name associated with.
It is hard to define the word, but it is basically used to describe someone so disgraceful that they are seen as the lowest form of life. "Worthlessness", "waste of skin", "dirt". "Nothing". Far worse than most other insults, where the victim is often just referred to as genetalia.
The fact that "scum" is a non-swear, and seen as perfectly acceptable English, makes it even more demeaning and offensive. If you are condemned as a "cunt" or a "fucktard", then you are simply being attacked with cliché profanity, used spontaneously and with no particular venom or thought. "Scum", however, is usually only used in exclusive conditions where it is the only word for the job, and makes the victim feel like the lowest of the low.
low life person. Who insults other people because the person is self conscious of themselves. They act like everything is a joke and picks fights with everyone.
1) Someone who has very few morals and often does things to aggravate another person
2) Someone who is arrogant and uncontiously aggravates other people 3) A build up of grime on any kind of surface
<i>That guy is such scum.</i>
<i>Look at all the scum on this counter!</i>