1 thumb down
when someone has no thumbs up and 1 thumb down. pathetic enough to have a thumb down, but not noticed enough to have multiple thumbs down. aka the epitome of self pwnage multiplied by everyone who overuses lol.
someone who has 1 thumb down racks up so many nub points that they are court ordered to have their testicles removed
they also vaporize in the presence of Chuck Norris
they also vaporize in the presence of Chuck Norris