Skip to main content
A jealous obsession felt by the few who, when around their friends who all have iPhones, have a fear of missing out on the many advantageous entertainment methods an iPhone has to offer over 'ye olde mobiles'.
(Two friends sitting on the same couch playing 'Words with Friends'...whilst a third friend sits in between, only with his primitive 'button phone' to keep him entertained)

Friend 1 (iPhone): Bullshit, there's no way what you just sent is a word, you made that up!....(enters a reply word to Friend 2). Suck on this fgt!

Friend 2 (iPhone): Haha you idiot, you're guessing this shit as much as I am!

Friend 3 (Non-iPhone): -_- (wondering wtf is going on) ...man I got some serious iFomo.
iFomo by markbar May 3, 2011
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.
An overzealous person who is willing to pay top dollar for an Apple product as soon as it becomes available. They have been known to stand in line for hours, even camp out at a retail store, to try to be the first person to buy a newly-released Apple product.
Leaira: Hey, Jordan, look at all those people lining up by the door! What's going on?

Jordan: Oh, the new iPhone is coming out at midnight tonight. They want to be the first people to get one.

Leaira: Hahaha! That's crazy! Don't they know these things will be obsolete in like 6 months and they'll come out with something else?

Jordan: I'm sure some do, but I guess they want to be able to brag that they have one. What a bunch of iFools!

Leaira: Yeah, no doubt! In a year they won't even be able to give these things away on eBay!
iFool by brie46902 August 28, 2009
Related Words
iFomo • Ifom • infomocio • isomorphism • IFMOM • ifmosa • ifodosnka • IFOMC • iFool • IHOMO

isomorphism

Abstract algebra: Take a group G, and a group H, with a group operation *. G is isomorphic to H if there exist a map f: G->H such that:

1: f is injective
2: f is surjective
3: f(a*b)=f(a)*f(b) for all a,b in G

If f satisfies these three properties, f is called an isomorphism.
The map f: Z -> E given by f(a)=2a where Z is the integers and E is the even integers is an isomorphism.

Proof:
Showing injectivity

f(b)=f(a) => 2a=2b (from the given function) <=> a=b

Showing surjectivity
Suppose n is in E. n is an even integer hence n=2k for some integer k.

f(k)=2k=n, hence f is surjective.

Homomorphism:
f(a+b)=2(a+b)=2a+2b=f(a)+f(b)

Hence f is an isomorphism. Q. E. D.
isomorphism by qsqazxcvfrew March 29, 2018
So like, the fear of missing out (FOMO) but for information. This can be any piece of information--from gossip, to a story, to a scientific fact, or more.
"I know something you don't know."
"Dude, tell me."
"I'll tell you the next time I see you."
"No! Now I have infomo, you gotta tell me."
infomo by tbaam November 23, 2019
a person who has a bad time thinking of his problems but still thinks about them too much.
Carlos: Hey bro, I heard André didn't show up for his job interview

Johnny: Oh yeah, he keeps talking about it, He's being an Infomocio right about now.

Carlos: WTF is an Infomocio?
infomocio by reallydoe? December 8, 2019
IOMOS by NeuJitsu May 11, 2010

Isomorphic JavaScript 

A JavaScript application which can be executed in both a browser and a non-browser runtime. This was the first term used to describe this concept, but "Universal JavaScript" now has wider acceptance. Mathematicians and functional programmers will scoff at you if you use "isomorphic" to describe JavaScript, so save face by using "universal" instead.
You aren't writing isomorphic JavaScript? Ha, you remind me of my old Java coworkers.
Isomorphic JavaScript by chexxor March 30, 2017
More from Urban Dictionary

No Surprises Wedding

A "No Surprises Wedding," or NSW, is a wedding invitation designation that tells attendees that there can be no unplanned announcements, engagements, events or speeches at the wedding - all actions must be pre-approved by the couple. Anyone who performs an unapproved "surprise" will be asked to leave the wedding early.

This designation comes from Reddit, where so many stories of bad wedding behavior indicated a need to communicate expectations for the wedding behavior of attendees.
You are cordially invited to the nuptials of Brian and Tom on October 31 at noon.

Please note that this wedding is child-free (under 10) and a No Surprises Wedding (NSW). Reach out to wedding planner Sami Smith to request approvals or exceptions; please note that exceptions will be rare. Limited child care for under-10s will be available. All approvals will be noted and included in planning. Unapproved, or surprise exceptions, will result in guests being asked to leave.
Word of the Day on November 8, 2026
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"
ulzzang by `r i k kit t y February 26, 2008
Word of the Day on November 7, 2026
EBK stands for "Elite Ball Knowledge." 1 In internet slang, "ball knowledge" originally referred to a deep understanding of football/soccer or basketball, but it has evolved into a broader term for having a highly sophisticated, deep, or niche understanding of any specific topic (such as music, movies, or subcultures).
Person A: "That scene was a direct homage to an unreleased 1982 Japanese indie film."
Person B: "Wow, EBK."
EBK by silwhett November 5, 2026
Word of the Day on November 6, 2026
A seemingly endless debate with a idiot
I don't know man im not ready for yap trap stupidity today which always tries to suck you into it
Yap Trap by WolfieSnack November 4, 2026
Word of the Day on November 5, 2026
Texas is categorized as a swing state in presidential elections, but has voted for Republicans more times than for Democrats in recent history. As such, as demographics change political alignments, some Democrats believe that Texas will vote blue, or Democratic, due to their Hispanic and African American voters, who often align themselves with the Democratic Party's liberal wing.

Blexas has been cited as possible in the upcoming decades, but only if Democrats continue to win the Hispanic vote in bigger margins.
Democrat 1: What is your prediction for the 2024 presidential election?
Democrat 2: Well uh, Blexas!
Democrat 1: You've been saying that since 2008 though.
Blexas by Tritonist June 14, 2021
Word of the Day on November 4, 2026

briefcake 

"Did you check out the briefcake in courtroom C?"
briefcake by Ben Frey April 6, 2006
Word of the Day on November 3, 2026
Load more