Comes from about oliver's stream chat where posting links is banned and writing/tagging the user mr.cob4lt will give you a warning. It was used as a prank.
An interesting and pog advisor for GIU; a player of League of Legends. A god gamer, if you will.
Also known as, Baltsy, Balts, Baltsy-chan, Coby, Coba, Blue, or occasionally, chai.