masturpooping 

It's when you poop while masturbating??!??

No more explination needed.

Toilet + Poop + penis + hand = masturpooping

masturpooping by Llamadude July 13, 2007

masterbooping 

When you take a dump and jerk off at the same time.

"damn, that brey chick is hot. But i gotta take a shit. I'm gonna go masteboop.

"mark's mom caught him masterbooping. He was covered in feces and semen."

masterbooping by cuminmybutt January 12, 2008

masterooping 

masturbating while you take a poop.

one day i was sitting on the toilet masterooping.

masterooping by chief121692 November 18, 2010

masturposting 

The act of posting a message on a forum that is so undoubtedly awesome, that you climax numerous times while writing it.

John was so into his carefully worded tyraid against hotgrrl6969, who inadvertantly posted a thread on the wrong section of the message board, that he unintentionally masturposted all over his keyboard.

masturposting by Geoff B January 21, 2004

Masturbooping 

Jerking while pooping on the toilet.

man i was so bored sitting on the toilet, so i started masturbooping

Masturbooping by ZomgPoof December 12, 2011

masterpooping 

masterpooping is when you take a shit in your hand and then masterbate with said shit

I have nothing to do, I guess I will just spend the day in the bathroom masterpooping

masterpooping by onlycass August 5, 2010

masturboofing 

When one decides to pleasure themselves but they are also talking to someone over text at the same time without their knowledge of the action they are performing.

He is so weird, last night I heard that he was masturboofing with some girl and she didn't find out until today

masturboofing by Booflord December 8, 2020