Those really annoying idiots who
A: define words that everybody knows like "annoying" or "plastic"
B: People who define their boyfriend or girlfriend's name, using words like "Beautiful", "Smart", or "Sexy".
C: Those bored people with no life who make up their own random words that dont make sense and will never be used.
A: My brother is such an UrbanDoucheBag, once he went online and defined the word welcome.
B: I found out that UrbanDoucheBag had a crush on me when she defined my name on Urban Dictionary.
C: That kid is such and UrbanDoucheBag, and he has no friends cuz all he does is make up words and post them on Urban Dictionary.