What does MULM stand for?
What does MULM mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: MULM.
We've found a total of 1 definition for MULM:
What does MULM mean?
- The sludge that collects at the bottom of an aquarium, consisting of fish excrement, decaying plant matter, and other assorted dreck.