(nautical) The act of a wave (or other vessel) striking the stern of a vessel.

present participle of poop

(obsolete, intransitive) To make a short blast on a horn. / (obsolete, intransitive) To break wind. / (informal, somewhat childish, intransitive) To defecate.

(informal, often childish) Fecal matter; feces. / The sound of a steam engine's whistle, typically low-pitched.

(childish, euphemistic) Expressing annoyed disappointment.

A set of data or general information, written or spoken, usually concerning machinery or a process.

(transitive) To tire, exhaust. Often used with out.

(nautical) The stern of a ship. / (nautical) The poop deck.

(transitive) To break seawater with the poop of a vessel, especially the poop deck. / (transitive) To embark a ship over the stern.

(informal) A stupid or ineffectual person.