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U Dum is a game where you, the player, tries to get the attention of another player in a variety of ways. After gaining their attention, you immediately shout "U Dum!" However, the defending player may preemptively shout "U Dum" after you have gotten their attention, nullifying your initial attempt.
Todd: "Hey Blair, I learned something interesting about you this weekend."

Blair: "Really? What's that?"

Todd: "I learned that U Dum!"
U Dum by weenius September 10, 2010
Words you can keep

boi u dum 

boi u dum is the worst insult ever created so dont use it regularly
eric: DiD u SeE ThE nEw FoRtNite SkIn? me: BOI U DUM
boi u dum by OK KO February 9, 2021

u dumb boi 

said or done something incredibly stupid
so my brotha said "man i feel like i can fly" and i said to him "nah u dumb boi"
u dumb boi by omgthatshim February 5, 2010

is-tch'u-dumb 

the most gangster way to say are you dumb to someone that is a retard.
"let's visit jenny"
"is-tch'u-dumb you know she is a bitch
is-tch'u-dumb by AFIkid January 22, 2007

U Dumb As Hell Boy 

said by Conner Temple Tv.

He Called Me Dumb
"Wheres the Gc" "U Dumb As Hell Boy"

u dumbass we do not have a website 

hahah. u so unbelievably dumb
person 1 says some dumb shit
person 2 kicks him out of the conversation, puta him back later and semds this link. person 2 put a lot of time and effort in this site.
person 1 klicks the link and be sooo fucked. he be thinking:" lmaooo he got me gooooood"
u dumbass we do not have a websitebis used for that exact reason

Y U DUMB? Elementary School 

The name of the school in SML...
I just went to Y U DUMB? Elementary School - I give it one star because the teacher (Jackie Chu) is dumb
More from Urban Dictionary

Salad Days 

green inexperienced youthful judgement and cold blooded execution of those judgements.

Rashness with little concern of consequence.

Antony and Cleopatra. William Shakespeare

"My salad days,
When I was green in judgment, cold in blood."

- William Shakespeare, Antony and Cleopatra, 1.5
"How did you end up in jail?"

"Salad days, 'nuf said."
Salad Days by GilbyRFC0 October 7, 2011
Word of the Day on August 28, 2026

age gate 

An absolutely foolproof way to keep minors from viewing content deemed "too mature" for them to watch.
Billy: "So I was trying to watch some videos for an M rated game, and I ran into an age gate, so I put in my real birthday. SOMEHOW it managed to figure out that I am 12. CURSE YOU AGE GATE!!!"

Bill: "Fucking age gate! *quick scroll* THERE! I was born on January 1, 1904. Fuck you age gate."
age gate by Banja January 7, 2011
Word of the Day on August 27, 2026

board chow 

A)
The Crud that collects under the keys in a keyboard. Usually more severe in the keyboards of programmers and webmasters as they tend to spend a lot of time at the the computer and thus eat at their desk. Mainly affecting IBM Model M (clicly) style boards.

B)
Can also be used to gross out Non-Techie people
A)
Bill: want to go to the club?
Bob: No, I've got to clean out my board chow, keys are starting to stick.

B)
Bill: Want to go out to get a bite?
Bob: No, i am just going to have some of my board chow/
Bill: Whats' that?
Bob: The food scraps that collect in my keyboard; Want some?
Bill: *GAG* *HURL* *GAG*
board chow by BinaryHackerMan September 3, 2007
Word of the Day on August 26, 2026

young pup 

a young person, a young adult in their late teens/early 20s.
Ah, you're just a young pup at 23!
young pup by the dog May 30, 2006
Word of the Day on August 25, 2026
West Midlands slang word for rockers, bikers, greasers etc. In the late 1980s it was used by the UK music press to refer to a specific scene centered around the bands Pop Will Eat Itself and Crazyhead. The term never found favour with readers of 'the inkies' (Sounds, Melody Maker and the still extant NME) and was soon dropped. Now often used in predominantly working-class areas of the midlands and the north to mean someone who listens to rock-derived music and/or dresses in a manner that suggests they affiliate themselves with rock music of some kind.
Some grebo passed with Sabbath playing on his stereo.
The Poppies are at no. 17? God, a grebo band in the charts!
They're playing nu-metal now, bloody grebos!
grebo by cactuscat September 15, 2006
Word of the Day on August 24, 2026

TikTok Farlands

TikTok Farlands is a term to refer to videos that you see after scrolling for a long time. These videos can potentially be disturbing, or weird. Said videos can also have low likes, or low comments.
“I reached the TikTok Farlands bro
Word of the Day on August 23, 2026
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