When you bring food into the shower with you because you know you will get hungry while you are in there
Forgot my shower snack in the shower again.
Really Greg? Again?
While your in a rush, you combine eating and showering. Therefore your snacking while taking a shower.
Andy: "Hey robby! Your going to be late for work"
Robby: "Nope. I'm going to be saving time while shower snacking!"