Top definition
A turd that slips silently into the water.
I was afraid my big dump was going to make a loud kerplop and embarrass me in the office bathroom today, but luckily it was a Ninja Turdle.
by Baindawg November 29, 2012
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2
The phenomenon where you poop and wipe your butt to find there's nothing on the toilet paper. It's as if you never pooped.
"Kevin, you won't believe it."
"What, Jeff?"
"I just had a ninja turdle. Made my life so much easier for a second."

"Good! We saved on toilet paper, then."
by Koreku August 23, 2017
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