Learner's definition of POO
informal
1
[noncount] : solid waste passed out of the body : feces㞎㞎；屎 2
[singular] : the act of passing solid waste from the body拉屎 — used especially by children in the phrases take a poo and do a poo尤用于短语take apoo和do a poo，儿童语言
— poo
verb poos; pooed; pooing [no object]