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A contraction of "you're jealous". Popularised in late 2010 alongside a macro of a man grinning. Sometimes written in greentext as "you jelly".
Person A: I've got a mosin nagant!
Person B: FUCK YOU MOSINS SUCK
Person A: ujelly?
ujelly by DRAC250 March 25, 2011
Related Words

U Jelly? 

U Jelly is a phrase/meme used on forums, most commonly 4chan, to ask a person if they are jealous. It's usually accompanied by a picture of a guy with a smug smirk, with 'U Jelly?" Over his head.

It's used to ask forum goers are they jealous, because someone on the forum has something that others don't have, and they want to show it off, to make other people Jelly.
Anonymous: I just got this limited edition version or Radiohead's, Kid A on vinyl, U Jelly?

Anonymous 2: Yes I very much am Jelly!
U Jelly? is an online catchphrase used as a shorthand for “you jealous?”, an inflammatory remark typically interpreted as a form of trolling in discussions and comments.

Similar to "U MAD, the phrase is typically said in a boastful manner to cause annoyance. On imageboards, the expression is often accompanied by a cartoon character wearing a smirk.
2400 out of 2400 on sat, u jelly?

Lvl 100 in lol, u jelly?
u jelly by u jelly noob! April 27, 2012

U jelly bro?

A nonsensical phrase used to accuse your friends/foes of being "jelly," i.e. jealous. Closely related to "U mad bro?"
Cee Lo: I see you driving 'round town with the girl I love and I'm like, FUCK YOU!

New boyfriend: U JELLY BRO?
U jelly bro? by RedReplicant October 27, 2010

u jelly? 

Another way of saying, "You jealous?"
Guy 1: I got an A+! u jelly?
u jelly? by SuperWeeGee September 30, 2010

u jelly? 

I just bought a new mac.
Fuck off macfag.
U jelly?
u jelly? by b1791813 October 19, 2010
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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.
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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
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korean word for madam, older woman
Ajumma wait a moment
Ajumma by aintnotinbutnice July 5, 2009
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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
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Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).
After we broke up, he was floxi to me.
floxi by Dr. Geek May 13, 2009
Word of the Day on September 28, 2026
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