In Kpop, the member of an idol group that is your favorite. A person may have one ultimate bias, and many other biases from other idol groups, or only have one ultimate bias. This term is derived from "having a bias towards a particular person."

to sport a boner, fly the sail at full mass, rock hard, etc.

A bias is a term used in the kpop world. Out of a group you could have 1 or 2 or many biases , you choose a bias based off of theyre personality, how they act , what kind of person they are , and you and see if you truly want them as your bias , you can find this by watching videos and content, and do not choose one from the looks of the idol! That is quite rude , and disrespectful just to be like " oh he's super fine im gonna make him/her my bias" that proves that you only like them for theyre looks ans not who they are!

To lean towards something because you don't like something else, or you like something more than something else. Goes hand in hand with discrimination and prejudice.

opinions, feelings, etc. (often preconceived) towards a person, place or thing with and/or without prior emperical knowledge, i.e. something that we all have, regardless of perception. See also ignorance.

that one thing present in most terms defined here in the urban dictionary.

What every single definition on Urban Dictionary has.