Slappy- Green Goo

Before I could do anything, the dummy tilted his head back.  He opened his jaws wide.  I heard a gurgling sound from deep inside Slappy's stomach.  And then I cried out as the gurgling grew to a roar.
And a thick green liquid poured out of Slappy's open mouth.  It gushed out like water from a fire hose.  Thick green gunk.  Thick as pea soup.
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"Ohhhhhh.  The smell!"  A girl cried.  A foul, putrid odor rose up all around us.
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I saw a boy stand up and try to run.  But his feet slid in the green gunk, and he toppled back to the floor, facedown in the goo.  "It's in my eyes!" a boy screamed.  "It's burning my eyes!"

-Bride of the Living Dummy, chapter 23