The act of masturbating in the shower right up until you're about to cum and then rinsing your penis in cold water in order to delay ejaculation. Repeated as many times as desired.
Jim: Since when does it take you 45 minutes to take a shower? Now we're late for the game.
Bob: Sorry, I was in a groove and never wanted it to end. I had to cold soak like 15 times.
Jim: You can do all the cold soaking you want on your own time. Lets go.