Synonyms

poo

American

[poo] / pu /

noun

Slang.

excrement.

verb (used without object)

Slang.

pooed, pooing

to defecate.

poo British

/ puː /

interjection

another spelling of pooh

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of poo

First recorded in 1955–60; of expressive origin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The couple have documented the "mammoth renovation" project on their Channel 4 show and said the "biggest curve ball" they encountered so far was dealing with bird poo and dry rot.

From BBC • Apr. 17, 2026

The average adult produces more than a liter of urine and over 100 grams of poo each day.

From Science Daily • Apr. 13, 2026

Infected birds shed the parasite in their saliva and poo, contaminating food sources when they feed.

From BBC • Apr. 9, 2026

In England, Scotland and Wales, the level at which traces of blood in FITs trigger further investigation is 80 micrograms of blood per gram of poo.

From BBC • Mar. 31, 2026

The kid stared at Jake as if he were an unruly monkey hurling poo at the zoo.

From "The Smartest Kid in the Universe" by Chris Grabenstein

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

poo