poo

verb

pooed; pooing; poos

intransitive verb

informal
: defecate
An Australian couple found themselves upstaged during their own wedding by their 3-year-old son, who interrupted the ceremony to announce: "I have to poo."Ben Hooper
When proper citizens of Rome were lowering their bottoms onto indoor toilet seats, my ancestors were using the woods to do their business. I suspect they just squatted and pooed without the benefit of a hole.Jim Jones

Examples of poo in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
After testing each group four times, the team found that krill reacted strongly to the scent of the penguin poo. Monica Cull, Discover Magazine, 20 Mar. 2025 Now, researchers have found yet another way to put penguin poo to good use. Sarah Kuta, Smithsonian Magazine, 13 Mar. 2025 Burps and poo from cattle, sheep and goats generate methane, a greenhouse gas 80 times more powerful than carbon dioxide in warming the planet in the span of 20 years, according to the UN Environment Programme. Sandee Lamotte, CNN, 10 June 2024 Read: Dog poo, an environmental tragedy Menin shared with me a recent study in which researchers found an average of 31,000 fecal bacteria per 100 milliliters of puddle water from New York City’s sidewalks. Kelly Conaboy, The Atlantic, 26 July 2023 See All Example Sentences for poo

Word History

Etymology

derivative of poo entry 1

First Known Use

1975, in the meaning defined above

Time Traveler
The first known use of poo was in 1975

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Cite this Entry

“Poo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/poo. Accessed 10 Jun. 2026.

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