Space Parasite

Space Parasites are a species of small, blue-colored grub-like life forms, which produce a mucous substance so acidic that it can instantly cut out ropes.

Cultural significance
Interstellar pirates are notorious for holding Space Parasite eating contests, to see who has the courage to eat more of these distinctly unpleasant creatures.

Appearances

 * Duck Dodgers, s01e07, "Shiver Me Dodgers" (2003)