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A person, often male, who is unstable or deranged.
"yo, what's his problem? he acting like a lunday!"
lunday by Marcus Rhott June 25, 2008
Related Words
An amazingly gorgeous girl that can lighten up your day with her smile, laugh, or simply her presence. Someone you don't want to lose.
that girl is beautiful, she must be a lundyn.
Lundyn by Yo_yo8980 May 1, 2017
This is the day where I know we are going to be bestfriends forever

Love you ❤
Hey lundyn this is where we become bestfriends
Lundyn by Janeah Gregory November 16, 2019
An utter state of chaos where nothing is happening as it should in a fair world
Abhishek Bacchan ki shaadi Aishwarya Rai se ho gai....Yeh kya lundaap hai!!
Lundaap by DepressedPsychotic February 10, 2010

Tinhead Lundai 

1. Lad with a tin can shaped head

2. Just an absolute lad!
went ti pub las night wi janice, some tinhead lundai started on us so we thought itd be best to pack up an go some place quieter
Tinhead Lundai by tinhead lundai September 22, 2010
Lunay is an extremely talented reggaeton and urbano singer from Corozal, Puerto Rico. He is ambitious, kind, hardworking, and fineeeee. His smile is blinding and makes everyone's knees weak. The remix of his song "Soltera" with Bad Bunny and Daddy Yankee shot him to being known as one of the top up-and-coming artists of the new generation of reggaeton.
My friend: Girl, have you heard Lunay's new song?
Me: Yessss, it's so good and he was looking like a whole full-course meal.

*he's in the back in the gif below*
Lunay by MrsAlston May 28, 2020
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
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