ＢＧＭTop 15000MeaningsNoun1. background music; BGMOther spellingsビー・ジー・エムUsage share unknownExamples1十じゅう字じキーを上うえへ！するとＢＧＭが変かわり、背はい景けいは魔ま王おうの居きょ城じょうへ・・・。Hit up on the D-pad, and the background music will change as the background itself becomes the Demon King's castle....