It's in that a lyric of Burning Sermon by Devildriver and there's a song called Bedlam 1-2-3 by Exodus. So......what is it?
Bedlam came from the name of an insane asylum from a while ago called St. Mary's of Bethelham or something like that.
when you want to know what something is, use google. for example in this case you should type define: bedlam into google, and it will give you definitions from the net. easy as. don't make a thread unless you've tried this please.