Porta Blumpkin 

The act of getting a blow job while taking a shit on the toilet inside a Porta-Potty. Very similar to the plain BLUMPKIN. Just watch out for the blue water.

Why don't you come inside this porta potty and give me a Porta Blumpkin.

Porta Blumpkin by Dominick AKA Snuffy September 10, 2007

The Porta Potty Blumpkin 

When one receives fellatio while defecating in a portable restroom or other rustic lavatory.

While at the Grateful Dead Concert, Hoover gave me The Porta Potty Blumpkin, also known as a hippie blowie shitbomb.

The Porta Potty Blumpkin by Incontenencia Buttocks May 22, 2018

portoblumpkin

The act of receiving fellatio while defecating in a portable toilet.

The foreman gave ricky a portoblumpkin on his lunch hour.

portoblumpkin by ERC! January 13, 2009

Portablumpkin 

Getting a blowjob while shitting in a porta potty

I was at this tractor pull in Tomah and got my woman to give me a portablumpkin.

Portablumpkin by Susie Mccutchans December 3, 2006

tumbling portablumpkin 

After receiving fellatio while dumping in a portapotty, cum in the girls eyes temporarily blinding her. Then, exit the portapotty and simply push it down a hill tumbling end over end.

i.e. Location, location, location

i got bored with getting blumpkins so I upgraded to the tumbling portablumpkin.

tumbling portablumpkin by Banana Suit May 18, 2009