Pooping \Poop"ing\, n. (Naut.) The act or shock of striking a vessel's stern by a following wave or vessel. Poop \Poop\, v. i. [imp. & p. p. {Pooped}; p. pr. & vb. n. {Pooping}.] [Cf. D. poepen. See {Pop}.] To make a noise; to pop; also, to break wind.