Toilet humour, or potty or scatological humour, is a type of off-colour humour dealing with defecation, diarrhea, constipation, urination and flatulence, and to a lesser extent vomiting and other bodily functions.
From a series of woodcuts (1545) usually referred to as the Papstspotbilder or Papstspottbilder in German or Depictions of the Papacy in English, by Lucas Cranach, commissioned by Martin Luther. Title: Kissing the Pope's Feet. German peasants respond to a papal bull of Pope Paul III. Caption reads: "Don't frighten us Pope, with your ban, and don't be such a furious man. Otherwise we shall turn around and show you our rears."
Off-color humor is humor that deals with topics that may be considered to be in poor taste or vulgar. Many comedic genres may incorporate "off-color" elements.
Image: Important business keeps me in Tucson Old Pueblo, Arizona