Thumbdowner
Pathetic life form that systematically goes through Urban Dictionary´s "Word of the Day" list giving a thumbs down to every single definition without reading any of them. Out of spite and utter lack of creativity, finds more exciting to downgrade the work of others than to come up with even a run of the mill (conventional, mediocre, prevalent, regular, trite) idea.
Get a life Thumbdowner, life is short and then we die.