Joobi was often bullied for being blue rather than yellow (Emojiland was quite racist back then). He often spent his days crying in his room.

One day he decided he had enough and flew into a blind rage killing Gun emoji resulting in him being exiled from Emojiland. 

For 20 years he lived in a small cave near the border of Emojiland watching the days go by. He had heard stories that he was a descendant of Kermit,