showerection
When a male becomes aroused while showering. It can be either devastatingly inconvenient or curiously enjoyable. It is usually caused by overly frisky scrubbing or simply unclean shower thoughts.
Man 1: "Sorry that took so long, man. I got an unexpected showerection."
Man 2: "Dude you were in there for an hour and a half."
Man 2: "Dude you were in there for an hour and a half."