shiverbating 

masturbating outside in the cold, that causes shaking and shivering in the process

Jimmy's doctor said "if you start shiverbating again you will get frostbite on your penis"

shiverbating by jayrad3420 February 23, 2011

showerbating 

Masturbating in the shower.

I got caught showerbating yesterday by my mom.

showerbating by Kevin_for_real July 3, 2006

Shiturbating 

When masturbating while taking a dump.

Sorry for the mess in the bathroom, I was shiturbating.

Shiturbating by thesavagebreast June 19, 2014

Shaterbating 

taking a shit a masterbating at the same time.

Are you really shaterbating in there?

Shaterbating by mustang3592 March 20, 2011

shaterbating 

Past tense for master baiting while shitting. The act of.

Last night I gave my self a tugg while pooping, I totaly was shaterbating.

shaterbating by reddonkey November 22, 2009

shitterbating 

masterbating whilst taking a shit.

Wow, Mr. Tamositis has been in there a while, I bet he's shitterbating again . . .

shitterbating by henrydinhofer October 18, 2010

Showerbating 

Mastorbating in the shower

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

Showerbating by Francesca Marie April 24, 2016