noun Baby Talk.
verb (used with or without object)
Origin of poo-poo
Examples from the Web for poo-poo
Judi Dench won for her five minutes of screen time in Shakespeare in Love, but far be it from me to poo-poo a Dench win.The Worst Oscar Winners, From ‘Rocky’ and ‘Crash’ to Gwyneth Paltrow|Kevin Fallon, Marlow Stern|February 26, 2014|DAILY BEAST
It seemed to be saying very deliberately "poo-poo, poo-poo," and that did not sound respectful.A Canyon Voyage|Frederick S. Dellenbaugh
"And poo-poo for you," said Murray, thumbing his nose at the apparition.The Onslaught from Rigel|Fletcher Pratt