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u/ means username/ and it is used in Reddit and is well known in the Reddit community. People use u/ insert random name here to mention a random Redditor to tell them to get their butts onto a post or to show others who the person is. BE AWARE that when you mention somebody they can see what you commented that made them go onto the post
Anne: Hey Harry how do I mention a Redditor again I'm still new to this website, please help.

Harry: You just type u/ and then their Reddit names and there you go that's the dummy's guide to mentioning somebody on Reddit.

Anne: Did you just call me dumb?!

Harry: No...
u/ by u/welikeReddit1 January 20, 2021
Related Words
u • U.S.A • u r • u.d. • U.S.S.R. • U.S. • U.D.I. • U R Gay • u-turn • u.u
You
U
U by NiggaStoleMyBeans March 16, 2019
The letter "w" being mistyped by some Vietnamese dumbass forgetting to turn off his Vietnamese keyboard.
Ưhat the fuck are you doing? Your mom.
ư by hunghihihaha April 12, 2022
Shorthand for the word "you." Commonly used on the internet by those of low intellect, or those who are much to lazy to type a three letter word.
u cumn ovr 2day 4 anl sx?
u by -Drakken August 23, 2003
Tears of joy. This emoticon is used when you see or experience something that makes you cry happily.
00: "My mom just survived her cancer surgery and they say she'll be alive and live normally again! ;u;"
;u; by rtivey01 September 16, 2017
The twenty-first letter of the english alphabet.
If you didn't know that already, there must be something horribly wrong with you.
A B C D E F G H I J K L M N O P Q R S T U (see that? that's a U) V W X Y Z.
u by LykOMGurUGLY June 24, 2004
More from Urban Dictionary
The number of years you are still sexually active
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
sexspan by Dr Kat April 21, 2022
Word of the Day on October 28, 2026
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.
You didn't get any napkins with your takeout pork fried rice? Womp womp.
womp by 175623226 November 3, 2011
Word of the Day on October 27, 2026
When your wife’s boyfriend let you sleep past 8pm 😎😎
Wife’s boyfriend: You have 5 more minutes
Me: Poggers!
Poggers by Just_Charles April 14, 2020
Word of the Day on October 26, 2026

Oblication 

A vacation, feeling more like an obligation, that involves visiting or staying with family.
So Joe where are you taking the kids for spring break vacation? We are going on an oblication to Boca to visit my mother-in-law.
Oblication by kimmerr May 5, 2011
Word of the Day on October 25, 2026

Surf Dracula Syndrome 

A phenomenon in film/television series, most notably streaming series, where the main premise is drawn out to such a point that it takes an entire season or more to get the parts of the series the audience is actually interested in seeing.

For example, if a series is titled "Surf Dracula," a majority of viewers would tune in expecting to see Dracula surfing by the first or second episode. However, the entire first season would instead be tedious padding and backstory before finally ending with Dracula surfing in the last five minutes of the season finale.
I watched "Smallville" on Netflix the other day. Dude, it was ten seasons of filler before he finally flew! Major Surf Dracula Syndrome!
Word of the Day on October 24, 2026
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