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The stuff that builds up at the bottom of an aquarium, usually organic sediment or dirt.
Can also be used as a greeting or a funny exclamation of sorts
A: "Hey B, how are you doing today?"
B: "MUUUUUUUUUUUUUUUUUUUUUUUUULM"
A: "MUUUUUUUUUUUUUUULMMMM"

"Ew, there's so much mulm in my aquarium."
Mulm by Onyx13 January 21, 2020
Urban Dictionary Merch
Mulm is an alternative definition for alcohol. You also just scream it out randomly. Because it's lit.
What do we drink tonight? MUUUULM

Let's go and get some Mulm.
Mulm by Der Erzfeind January 25, 2019
Related Words
A German word for "Wad up". Often Head in the East of Germany, especially at International Schools.
Manfred: Mulm Alex
Alex: Nothing Mutch
mulm by Das Schiff November 28, 2016
You're such a mulmuf, but you're decent at it.
Mulmuf by ExoticFlqme August 12, 2021
More from Urban Dictionary

You met me at a very Chinese time in my life

A moment in time where you feel distinctly Chinese over all other things.
Dante: "I wish I could be Nigerian, but I can't because I'm Chinese. You met me at a very Chinese time in my life."
Word of the Day on September 25, 2026
Adjective. Used to describe persons who have adjusted or altered their lifestyle for environmental reasons. Crunchy persons tend to be politically strongly left-leaning and may be additionally but not exclusively categorized as vegetarians, vegans, eco-tarians, conservationists, environmentalists, neo-hippies, tree huggers, nature enthusiasts, etc.

Also used to describe establishments where alternative foods and products are sold, i.e. natural food stores.

Modified derivative of granola.
"I need more crunchy guys in my life. I'm so tired of dating preppy metrosexual assholes."

"I'm heading out to the crunchy store to pick up some fair trade chocolate and tea tree oil, do you need anything?"
crunchy by EBC July 11, 2007
Word of the Day on September 24, 2026
A group of people, typically women, searching through someone’s digital footprint in order to find more information about that person.
Susie wasn’t sure if her new Hinge match was a creep, so she assembled Galantir and they found out he used to post slurs on gaming forums.
Galantir by Ge-sus September 22, 2026
Word of the Day on September 23, 2026

murderhobo 

In a tabletop game, a murderhobo is a player who murders NPCs indiscriminately. This is normally derogatory, referring to a player who totally ignores quests, dialog, backstory, trade, world building etc.

The term is most common with Dungeons and Dragons, but it can be applied to most RPGs where the player is allowed to kill most quest-giving NPCs and NPC traders. E.g. Elder Scrolls, Fallout, Divinity original sin.
DM: The sad little orphan girl tugs at Steve's trenchcoat to get his attention, and ask for help saving her pet dog from...
Steve: I'd like to roll a strength check against strangling the orphan.
Dave: I call dibs on the dog.
DM: You murderhobos disgust me.
murderhobo by Loup&S September 9, 2021
Word of the Day on September 22, 2026
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