diddle bag 

When someone ejaculates into a plastic grocery bag.

The amount of noise the diddle bag created woke everyone else up in the room.

diddle bag by JFR16 March 24, 2017

diddlebay 

An unintentional estuary

While relieving himself against a tree, he created a diddlebay between his feet...

diddlebay by Proctor Gamble November 18, 2004

Diddlebug

Diddlebug (Noun) a Husband who spends so much time slacking off or "diddling" that the main goal task or objective is subverted or delayed horribly.

Matthew is such a Diddlebug!

Diddlebug by EnyoHaldane July 13, 2017