Someone who goes through pages of words doing the UD owners jobs for them. They are generally people who have no lifes:
nerd goon loser goomba noob
Keira Knightley: Hey do you want to come out to a party with me, get rich and famous and spend the rest of you life being loved beyond your wildest dreams?
UD Editor: No thanks i have to go approve sexual and racist slurs on Urban Dictionary.com
Keira Knightley: lol Goomba