Skip to main content
Urban Dictionary Merch
Your favorite words on things you can wear, drink from, read, or give to a friend.
The Urban Dictionary Store sells gifts you’ll have to explain.

mateable 

If a person is mateable then they are aesthetically pleasing and biologically acceptable to be a mate and/ or they are as sexy as Kieran Milne
Girl: he is so mateable cause he's sexy
mateable by Kiv October 20, 2013

Malleable 

One who's face can exceed the boundaries of normal expressions. To the extent of which those surrounding the face are shocked and sometimes caught off guard by its sheer malleability. A truly wonderful kind of face. One which should be respected.
Woah your face is Malleable!!

malleable goo 

A boss mechanic in the Professor Putricide encounter of ICC in world of warcraft... also see Night's Bane
Everyone needs to dodge the malleable goo, and save all battle rez's for night :P
malleable goo by RANAYR May 16, 2010

Malleable Universe Theory

A speculative physical hypothesis proposing that the universe’s fundamental parameters – physical constants, laws, and even dimensions – are not fixed but can be altered under certain extreme conditions. Unlike multiverse theories (which posit many static universes), malleable universe theory suggests that a single universe can reconfigure itself, perhaps through advanced technology, cosmic‑scale events, or unknown meta‑laws. It opens the door to “rewriting physics” from within, and is often explored in science fiction as a solution to the fine‑tuning problem or as a pathway to ultimate cosmic engineering.
Malleable Universe Theory Example: “The novel’s ancient aliens didn’t travel between universes – they reshaped their own, using the malleable universe theory to tweak gravity and save their dying star.”

Malleable Nature Theory

A philosophical and scientific standpoint that nature itself – the regularities and behaviors of the natural world – is not fixed but can be reshaped by intelligent intervention, evolution, or cosmic processes. Unlike classical views of nature as an immutable backdrop, malleable nature theory emphasizes that humans and other agents have already drastically altered natural systems (climate, genomes, ecosystems) and that future technologies could do so even more deliberately. It calls for an ethics of nature‑shaping, moving beyond conservation to active stewardship.
Malleable Nature Theory Example: “Her book on malleable nature theory argued that we have already entered the Anthropocene – nature is now a partly human artifact, and we must learn to design it wisely.”

Malleable Logic Theory

A philosophical logic framework proposing that logical laws (non‑contradiction, excluded middle, etc.) are not universal and fixed but can be modified depending on the domain, context, or purpose of reasoning. It supports logical pluralism: different logics (classical, paraconsistent, intuitionistic) are valid in different domains, and there is no single “true” logic. Malleable logic theory goes further to suggest that logics themselves can be redesigned – that we are not bound to any given system. It is often used in computer science, AI, and philosophy of logic to argue for flexible reasoning systems.
Malleable Logic Theory Example: “His malleable logic theory allowed the AI to switch from classical to paraconsistent logic when encountering contradictory sensor data – not a problem, just a context shift.”
More from Urban Dictionary

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”

Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murderer used a serrated blade.
Boffin by Agnon February 11, 2023
Word of the Day on October 3, 2026

Pee Calculus

When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing pee calculus.
Pee Calculus by anorlondo October 1, 2026
Word of the Day on October 2, 2026
Load more