1. That critical moment between 'having to take a dump real bad' and 'having an accident in your pants'.

2. The feeling that a turd is on the cusp of 'peeking' out of one's anus, resembling a turtle's head coming out of its shell.
We gotta stop this car and find a restroom soon! I got a peeking turtle over here!
by The Watcher April 4, 2003
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The peeking turtle is when your eating a girls ass and when she turns around you see she had a dick.
Dude, i was eating her ass, and she had a peeking turtle.
by Cumdumpster12 January 18, 2017
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A euphemistic expression regarding the extreme urgency to defecate and holding it in as much in as possible. Having the pressure of a fecal turd poking itself partially out of the bum hole while trying to make it to the closest restroom.
Roger sprinted down the hall from his desk to the restroom. He has a turtle peeking.
by Eaton Holgoode March 20, 2017
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