showerbating 

Masturbating in the shower.

I got caught showerbating yesterday by my mom.

showerbating by Kevin_for_real July 3, 2006

Showerbating 

Mastorbating in the shower

Person one. I'm gonna shower
Person 2 don't be showerbating

Showerbating by Francesca Marie April 24, 2016

showerbation 

The act of masterbation in the shower or bath.

Chris was showerbating, so it took him forever to get ready.

showerbation by Shmoblar August 26, 2005

Showerbation 

The act of masturbating in the shower.

I had a really good 10 minute shower , if it wasn't for the great showerbation that I subtlety did in there, I would have been out in half of that time.

Showerbation by El3ctro-Critical April 18, 2017

showerbang 

When two humans engage in sexual intercourse in the shower. The female usually against the shower door/wall leaving prints.

Sally was ready to showerbang bob

showerbang by Live for fun January 28, 2006

Showerbation 

Process of masturbating while taking a shower. Very convenient, due to the fact that most often ejaculation can easily be washed down the drain, the running water makes the activity more pleasurable, and practically every substance around is a lubricant.

Roommate: God, why does it take so long for Jacob to shower?

Passer-by: Isn't it obvious, he probably does showerbation every chance he gets!

Roommate: Oh gross, I hope he washes all the jizz down the drain.

Showerbation by Vahney_981 December 30, 2010

Shaterbating 

taking a shit a masterbating at the same time.

Are you really shaterbating in there?

Shaterbating by mustang3592 March 20, 2011