“Pull the Slack Out” is a cue used prior to lifting a bar off the ground in a deadlift, clean, snatch etc. This cue is for once you have your stance, grip and position set and you are ready to create tension on the bar. You want to create the tension through your body by very slightly pulling on the bar. When you do this, you will take the slack out of the bar (the slight bend that happens during the lift) as well as create a connection from the bar, through your body and into the floor. This process will send a message from your mind to your body saying “Get ready, we are going to lift something heavy!”