The act of safely locking out machinery typically robotic automation cells while your junk is out and trying to not get caught by the safety guy.
Bob: Hey bill can you help me with this robot.

Bill: yeah no problem.

Bob: don't forget to Lock out with your Cock out. I saw the safety guy cruising around. He's on a mission.
by Froogielicious January 14, 2010
mugGet the Lock out with your Cock outmug.