shit factory

noun2

1. •
   (vulgar, offensive) An infant, especially one who defecates a lot.

   • […] because you have neither the time nor the money to do any of the things you really wanted to do in life before you created a little shit factory of your own? — 2000
2. •
   (disapproving, vulgar) A bird, animal, etc. that defecates a lot.