poop1 / poōp/ • n. (also poop deck) the aftermost and highest deck of a ship, esp. in a sailing ship where it typically forms the roof of a cabin in the stern.• v. [tr.] (usu. be pooped) (of a wave) break over the stern of (a ship), sometimes causing it to capsize: carrying a high sea, we were badly pooped.poop2 • v. [tr.] (usu. be pooped) inf. exhaust: I was pooped and just flopped into bed.PHRASAL VERBS: poop out stop functioning: the analog tape fluttered slightly in pitch but didn't poop out.poop3 inf. • n. excrement.• v. [intr.] defecate.poop4 • n. inf. up-to-date or inside information: what’s the latest poop from campaign headquarters?poop5 • n. inf. a stupid or ineffectual person.DERIVATIVES: poop·y adj.