diaper sludge 

DURING ADULT DIAPERING SCENARIOS, A COMMON OCCURENCE IS DIAPER SLUDGE, A LARGE BOWEL MOVEMENT USUALLY BY A SUBJECT WITH A BOWEL DISORDER, LEFT IN A FLIMSY DIAPER. LEAVING A RATHER FOUL SMELLING MESS.

MAID "OH FUCK!, I HATE CLEANING UP AFTER THESE DIAPER SLUDGES LEAVE"
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diaper sludge by SATAN'S INFIDEL April 15, 2017

diaper stain 

1- streak of fecal matter on a cloth/disposable device meant to intercept human infant waste product as it exits the posterior.
2 -put down, like 'doody head' based on the undesiribility, and vileness of the substance of the stain being used as a metaphor for the qualities of the individual to whom the remark is directed

In Blade Runner 2, L Samuel Jackson called one of the other werewolves a "human diaper stain".

diaper stain by SMODNUK September 30, 2007

Diaper Shark 

Finding a diaper in a ball pit, sans the baby it belongs to.

4 Year old: "Mommy, look what I found in the ball pit!"

Mommy: "Put that down Timmy! You shouldn't swim with diaper sharks!"

Diaper Shark by AliceAlkaline September 14, 2009

diaper slut 

Someone who wears all the adult diapers, while often engaging in oral sex.

Mukian your such a little diaper slut! Come here and suck daddy ‘s cock like a good boy

diaper slut by Nacho! November 26, 2017

Diaper Shoes 

Large, white sneakers worn by Middle Aged women, often clown-like in appearance.

Person 1: "Wow, check out Mary's new shoes. It looks like her feet are wearing diapers!"
Person 2: "Word. Those are some fly looking diaper shoes.

Diaper Shoes by Shockererer November 7, 2016

Diaper Surprise 

The chunks of not quite absorbed cocoa mix at the bottom of the glass. Seen after completion of beverage.

I finished my hot chocolate, and of course, looked in and saw the diaper surprise!

Diaper Surprise by .Bruk November 15, 2009

Diaper sniper 

A pedafile that hides in the trees and bushes.

Don't use that playground. The cops spotted a diaper sniper in the woods.

Diaper sniper by Bostonbrian80 March 14, 2017