rumble blumpkin 

A rumble blumpkin is the same as a blumpkin (getting a blowjob while taking a shit) except the recipient has explosive diarrhea.

I wanted to get a blumpkin from your sister after dinner, but we ate Taco Bell and it turned into rumble blumpkin instead.

rumble blumpkin by chuck-fucking-norris December 18, 2011

rumple blumpkin 

Getting a blumpkin while taking a die-reah and then back-flip kicking the shit out the bitch like Charlie from Street Fighter Alpha so she hits the ceiling. 10 more points if she lands in the toilet. Don't forget to scream "KUNGFU!!!!"

Some ho-bag was ho-baggin me while giving me a blumpkin, so I switched up and made it a rumple blumpkin.

rumple blumpkin by Spoof January 22, 2005

Rumpleblumpkin 

A variation of blumpkin in which the defecator is having explosive diarrhea

Pads decided that Mexican food would be a good start to an evening full of Rumpleblumpkin

Rumpleblumpkin by Corlett June 3, 2006

Rumpleblumpkins

The act of Blumpkins (taking a doodie while receiving a blowjob) from your grandma.

"Grandma, we both know that I finishing shitting a long time ago, but in order for this to be Rumpleblumpkins, you need to stop watching and give me a blow job, NOW."

Rumpleblumpkins by John Spazzi May 27, 2009