Wheein is a vocalist and dancer from the Korean girl group Mamamoo. Her voice is smooth like honey and she can hit notes higher than heaven and harmonize better than angels. She is also absolutely adorable and serves looks on a daily basis.
An explanation or a term used to show you really don't give a shit. Usually said like whatever, whatever. Often said in an emotionless tone of voice for added effect.
Hey John the boss said we have to get these memo's done before we can go home.