Why does WWE superstar CM Punk have his name as CM Punk?

There has never been a reason as to why Phil Brooks uses the " CM " part of his ring name, or as to what it stands for. Over the years he has given many reason as to what it stands for, including ;

  • Cookie Monster
  • Cookie Master
  • Crooked Moonsault
  • Chuck Mosley
  • Charles Montgomery
  • Charles Manson
  • Crazy Mariachi
  • Chicago Made
  • Championship Material
  • Cole Miner

but the truth is that when he was just starting, he had it to stand for "Chick Magnet"