jerumpkin

The act of practicing for a blumpkin by jerking yourself off while taking a dump.

I tried to give myself a jerumpkin as practice before my girl gave me a blumpkin.

jerumpkano

The splash of terlet water on your balls or ass because of forceful dumping while giving yourself a jerumpkin. Similiar to a blumpkano.

Note: Degrees of splash are important. If water hits your balls, ass and taint it's a category 3 jerumpkano.

The category 3 jerumpkano caused me to evacuate the terlet seat as I was unable to concentrate on finishing the jerumpkin.

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jerumpkin shrapnel

A poop stain on the back of the terlet(toilet)seat that is left after sitting too far back while performing a jerumpkin.

After finishing a very satisfying jerumpkin, I got up turned around and noticed jerumpkin shrapnel on the terlet seat.