(pp) Naut. noun
1. A short deck built over the after part of the spar deck of a vessel of war; hence, generally, the stern of a vessel: also poop deck.
2. A cabin covered by the poop deck: also poop cabin.
—v.t.
1. To break over the stern or poop of: said of a wave.
2. To take (a wave) over the stern. [<OF pupe, pope <Ital. poppa <L puppis]

(pp) U.S. Slang v.t.
To bring to exhaustion; weary: usually used passively: He was pooped by the long climb.
—v.i. To stop; cease or withdraw. [Origin uncertain]