As a Noun: 1. Waste matter discharged from the intestines through the anus. Used especially when talking to children. English = poo. 2. The tubes in the lower part of your body through which digested food passes from your stomach to your anus. English = bowel, bowels. 3. As a Verb or Adjective: 1. To discharge waste matter from the intestines through the anus. Used especially when talking to children. English = poo, do a poo. 2. To have a bowel movement.