plumbobbing

A sexual position, similar to the jackhammer, only with a flacid penis that is inserted, then extricated from the vagina/anus from a vertical direction.

I was plumbobbing her till my knees got soggy.

Plumbob

noun
Pronunciation: pulambob
Origin: The Sims
The gem found above a Sim's head

For a lot of time in thought that Plumbobs didn't hace a Name so I called them Simeralds