gradoo

noun2

1. •
   (US, informal) garbage; crud, gunk; mess; filth, dirt

   • I sped out the back door, and bumped into MEME FRENKEL, who was collecting the garbage, or as she put it, "gathering the gradoo." — 1951
2. •
   (US, informal) caramelized matter which sticks to a pan or pot after most of the cooked matter has been removed; a sauce made from this