1. To hold an opinion with which someone disagrees (i.e., to have the "wrong" opinion)
2. A manner of presenting information which doesn't clearly have a pro-Republican, anti-Democrat tone.
Jim- I don't really prefer chocolate or vanilla ice cream, they're both equally good in my opinion.
Jeffy- God you are so biased! Chocolate is clearly the better flavor. That's just the truth.
Biased example- Barack Obama has a wife named Michelle Obama.
Unbiased example- Barack Obama is worse than Hitler, and so is every other Democrat that has ever existed.