JB (nickname) Type: noun, slang, nickname Pronunciation: /j-b/ Also spelled or known as: J.B. What does JB mean? Justin Bieber’s nickname. Other Justin Bieber Nicknames: Biebs, J. Biebs Justin Bieber‘s real name: Justin Drew Bieber Example sentence: “I had a meeting with Ope Odumakin and JB.” JB in songs: “I’m the black JB, the way […]