Secret ingredient in the slop (SPOILERS)

[Idiocy]

What's the secret ingredient in the slop?

• I see that there's a pile of stuff in the principal's lab that's (was) about to end up in the slop, but is it vaporized kid or monster or whatnot?
  
• IAlso what's that machine next to the pile?

[Will0wYT]

Its Cindys Dog

[Regrog]

it is probably cindy's dog or something like a mutation from the principal

[pikadon92]

Cindy's dog is used for making bisbuit balls, not slop. I think the slop comes from the underground creatures.