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.

Mortem Metallum 

The worse roblox fighting game since the owner ender don’t care about it
Man mortem metallum hitboxes suck ass

Mortem Mettalum

A wonderful, violent Roblox game where you're able to pick a weapon and hop straight into a free-for-all battle. Although the game is rather well-made, it is thoroughly ruined by a large portion of the community, which includes, but not limited to: Ro-gangsters, wannabe tryhards, Kanabo mains, and lastly speds.
Person 1: yo hop on Mortem Mettalum
Person 2: no that game's community is fucking garbage
Person 1: tru
Mortem Mettalum by ApplePlastic March 31, 2021

Mortem Metallum 

A Roblox game, where you pick a weapon (Most weapons are medieval, Except for the Chainsaw) and fight others. The game mostly is filled with toxic 7 - 13 year olds who spam "ez" "trash" "bad" and also have anger issues. The other types of mortem metallum players are teamers, chainsaw users (Chainsaw users are the most toxic), Kanabo users (Also mostly toxic), trash talkers (Obviously toxic), targetters, and people who just wanna play the game and be nice (Which are not 7 - 13 year olds)
Toxic Mortem Metallum Player 1: "EZ ur bad so garbage"
Toxic Mortem Metallum Player 2: "Nah, ur trash bc you spam"
Toxic Mortem Metallum Player 1: "Who asked?"
Mortem Metallum by PREDOVIAK15 August 18, 2021

Mortem Tyranis

Mortem Tyranis is a libertarian/anarchist association who will kill any and all tyrants. They have 3 different phrases used

Fideles tyranis ardent in Gehenna, Mortem Fideles bellum est, and Sic semper evello Mortem tyrannus. In order these mean, Those who are faithful to tyrants will burn in hell, the death of the faithful is war, Thus death always comes to tyrants
Mortem Tyranis. tyrannis bellum gerunt et omnes qui sustinent occidunt.

The death of tyrants. Wage war on tyrants and kill all who support.

Ad mortem inimicus

What you will hear when the bringer of the law shitwhips your ass after a 50dmg light parry punish
*clang* AD MORTEM INIMICUS
Ad mortem inimicus by SlenderMF December 2, 2019

pre-mortem 

Reviewing the details of why a product or project launch will fail BEFORE the product actually launches. This is distinct in nature from a post-mortem, which FOLLOWS a failed product or project launch.
The group of product managers congregated in the kitchen to conduct a pre-mortem of the soon-to-be released cell phone device.
pre-mortem by shmoozle October 28, 2010
More from Urban Dictionary
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
Literally "dirty" pronounced with a West Indian accent. Can also have a positive connotation, for example Sean Paul's album title "Dutty Rock".
"The girl is pretty but she corrupt and dutty!"

or, in a positive usage:

"Booya! That freestyle was dutty!"
Dutty by J Hall April 3, 2003
Word of the Day on October 1, 2026
Load more