CBKing stands for Choice Band Slaking. Most people use Slaking as a hard out Choice Band pokemon, obviously because of its massive attack stat. Using it completely as a wall isn't that good because while it does have Slack Off, Slaking's ability will either force you to switch or stay in hoping your opponent won't do something nasty. As said before, Slaking is hard to use and if you do plan to slap on a Choice Band, you'll need to predict ewhat your opponent has and what he'll switch into, that is if they do switch.