Board Thread:Questions and Answers/@comment-93.36.207.144-20130923115606/@comment-58.175.254.18-20140406133214
From Podpedia
This is all incorrect. 'BM' stands for 'Been Mawed', form the last level of the original Halo. http://www.reddit.com/r/roosterteeth/comments/1mpgqo/where_does_ryans_xbox_live_name_come_from/ccbgcpa?context=3
