Citations:poop machine

Noun: "(idiomatic, pejorative or humorous) an infant"

 * 2004 — Zoey Dean, Girls on Film, Little, Brown and Company (2004), ISBN 9780316041645, unnumbered page:
 * If the baby wasn't her father's, maybe Jackson would dump Poppy's ass, and she wouldn't have to lose what little attention her father gave her to some drooling, burping poop machine with Poppy's perfect jawline.
 * 2004 — Lissa Manley, The Baby Chronicles, Harlequin (2004), ISBN 9780373197057, page 76:
 * "You, little girl, are a genuine poop machine."
 * Laura chose that exact moment to spit up whatever small amount of cereal had actually made it into her system.
 * 2009 — Henry Winkler & Lin Oliver, Dump Trucks and Dogsleds: I'm on My Way, Mom!, Grosset & Dunlap (2009), ISBN 9780448443805, unnumbered page:
 * This baby, this brother, this crying little poop machine, really was going to arrive very soon now, whether I liked it or not.
 * 2010 — Roger Friendman, Nipple Confusion, Uncoordinated Pooping, and Spittle: The Life of a Newborn's Father, iUniverse Star (2010), ISBN 9781936236183, page 106:
 * Jessica and I had a great life together, why would we want to screw it up by introducing an energy-sapping, budget-draining poop machine?
 * 2011 — Phil Torcivia, Just a Nice Guy, ISBN 9781456499051, page 179:
 * Are you ready for the monthly pregnancy scare and are you stocked up on morning after pills and compelling arguments for her to consider not giving birth to an expensive, little poop machine?
 * 2012 — J. A. Pitts, Forged in Fire, Tor Books (2012), ISBN 9780765324696, page 147:
 * Never could keep friends long, so I figured if I had a sister, I'd at least have someone to be friends with, even if she was a crying poop machine for the first year."

Noun: "(idiomatic, pejorative or humorous) an animal whose defecation inconveniences humans"

 * 2000 — Gerry Buccis & Barbara Somerville, Training Your Pet Rat, Barron's Educational Series (2000), ISBN 9780764112089, page 85:
 * Then, there's scooping the poop. Rats are real little poop machines.
 * 2005 — Audrey Pavia (with Janice Posnikoff), Horses for Dummies, Wiley Publishing, Inc. (2005), ISBN 9780471781240, page 165:
 * Horses are virtual poop machines that never seem to stop evacuating their bowels.
 * 2005 — Lynne Scott, Dingo Devotionals: Learning to Heel, AuthorHouse (2007), ISBN 9781434331533, page 111:
 * Everyone coos over puppies but give me the old grey face of a seasoned dog any day over those little poop machines.
 * 2009 — M. J. Williams, Doorway to Zahr: The Last Dragon, AuthorHouse (2009), ISBN 9781438983394, page 45:
 * "Chihuahuas?"
 * "Yeah, why?" Blake asked.
 * "We had some. They're little poop machines."
 * 2012 — Vicki Lindgren Rimasse, Ruminations of a Catholic School Girl, First Edition Design Publishing (2012), ISBN 9781937520670, unnumbered page:
 * Everyone knows that happy tale for sure: one of Hercules' tasks was to clean the Aegean Stables which housed a mess of horses that were virtual "poop" machines; continually producing mass quantities of excrement.