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.

Mustardization

In relation to Corrosion - the change of colour of rust from a light red to a dark red colour
The corrosion on the Tank has mustardized, The mustardization of the rust has indicated a change in the intergrity of the tank
Mustardization by Revric July 28, 2011

mustardish 

A) a condiment, that's, as the name implies, a combination of mustard and relish
B) a color that's a mixture of mustard yellow and relish green
C) adj: something that's dark, murky, and possibly yucky, combined
Ron,, from the Harry Potter series,: yuck, my mom sent me a mustardish sweater.

Harry: it's actually maroon, you can't properly see the colour, due to the lack of light.
mustardish by Uncle Dimma July 20, 2013

Yellow Mustarding 

Annoying somebody to the extent that it is no longer funny. Results tend to be less angry and more desperate and confused.
Dude stop it you’re being so unoriginal nobody but you thinks it’s funny, you’re basically yellow mustarding us at this point. We just wish you would stop.

Robertois Honeus Mustardis

A person who has an extreme and unhealthy addiction to honey mustard.
Person 1: Hey look at Roberto Brillon eating honey mustard .

Person2: I heard he is a Robertois Honeus Mustardis!

Person 1: Stay as far away as possible or else you’ll become addicted as well.

mustardist 

I love you mustardist
mustardist by big papaz December 28, 2022
More from Urban Dictionary
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
korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
Word of the Day on September 30, 2026

Slop Grenade

When someone uses AI to generate a large document, slide deck, or piece of code/software and tosses it over the fence for you to deal with.
Chad: Hey Brent I sent you the new backend API change to review, it’s only 100 files changed.

Brent: he just tossed me a slop grenade
Slop Grenade by Joe Squid September 28, 2026
Word of the Day on September 29, 2026
Load more