"Bro" stands for Brother but can be used when you talk to for example a friend, it´s being used a lot in America.
by MR Info Bro February 05, 2018

bbl stands for "BE BACK LATER" it´s often used when you don´t want to type: Be back later, some people says it means: Big Ben London, but the original shortening is "Be Back Later" thats what it means.
by MR Info Bro February 06, 2018
