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34.
An actual acronym among the mass of Millennial abbreviations--WTF, OMFG, ad nauseum--mistaken as such.

The word fomo (not to be mistaken with its homophone, Faux-mo) stands for “fuck off; move on.” Its lack of semicolon is comparable to other minor details implied—though not included—in the transference of countless other phrases to acronyms. ex: the word “of” in OPEC.

Created as an addition to the lexicon of netspeak, fomo is ideal for a thread in which some twatrot insists on saying the same thing with slightly different phrasing under the auspices that this time s/he’ll make everyone else “see the light.” A mod or community member who’s had enough might chime in ‘”Dude, we all heard you. Feel free to fomo. Matter of fact, I insist.’

However, the inception of fomo came about in direct response to some Millennials with the attention span of gnats, who—despite the fact they’ve never read an entire book in their lives—still feel the inherent need to exert the time and energy to snark that a 5-paragraph post was tl; dr.
(via chat):

‘Fecking shit. I spent all morning writing a blog just to log-in tonight and find four lame-ass comments in response!’

‘dang, maing. 4 cmnts means u affected 4 ppl. imagine how I feel 2 get cero?’

‘Yeah, well imagine how *I* feel when all four say ‘tl;dr’?’

‘worrrrrst. it's like, whyd they feel the need 2 tell u that? bitches need to just fomo—and fast.’

‘Agreed. I don’t have to stop some author in his tracks and go, ‘Hey, I didn’t read your book.’

‘Totez.’

‘O.K. You can speak in English now…”
de clintcatalyst 10 juillet 2008
15 52
 
1.
"fear of missing out". The fear that if you miss a party or event you will miss out on something great
Even though he was exhausted, John's fomo got the best of him and he went to the party.
de Beaqon 2 octobre 2006
6802 1989
 
2.
Fear of missing out ( on good times, gig, party or similar )
" I can't decide if I should go out tonight, but I know that if I don't I know I'll get chronic fomo "
de AnnieK 13 mai 2007
350 208
 
3.
Fear of Missing Out - the fear you feel that you will miss out on something huge if you don't do something/participate in an event.
'I want to stay home tonight but I have FOMO so I will push through the fatigue.'
de celeste1 14 avril 2009
181 145
 
4.
| fōmō |

noun

a state of mental or emotional strain caused by the fear of missing out.

• Evolutionary biology - an omnipresent anxiety brought on by our cognitive ability to recognize potential opportunities: The brothers had last-slice fomo as they stared at what was left of pizza.

• (with subject) desire to do something, typically accompanied by unease.

• A form of social anxiety - a compulsive concern that one might miss an opportunity or satisfying event, often aroused by posts seen on social media websites.

ORIGIN: acronym from FEAR OF MISSING OUT
The college student had concert fomo.
de Johnny FOMO 3 septembre 2013
36 11
 
5.
Acronym - Fear Of Missing Out

The intensely annoying act of being psychologically and physically compelled to open social networking or email applications at innoppropriate times. Significantly the FOMO phenomena generally occurs during mid-conversation with friends and loved ones, usually resulting in the individual/s involved in the conversation, that are not afflicted with FOMO, experiencing isolated incidents of intense rage.
Individual 1: "That looks like a good deal"

Individual 2: "It does. Ok, so do you think we should go ahead and book this holiday then?"

Individual 1 (FOMO): <looking down at mobile phone>

-- 30 seconds pass --

Individual 2: "I really hope that phone exploads in your hands and you are left unable to do that, at all, EVER"

-- 10 seconds pass --

Individual 2: "You disgust me to the core"

-- 10 seconds pass --

Individual 1: <looks up from mobile device> "Did you say something to me just then?"
de humaoliv 16 juillet 2013
26 10
 
6.
Verb. Used among some ebay sellers as a method to ship coffee mugs. First the mug is wrapped in tissue, then padded in bubblewrap, then boxed and placed inside a USPS padded priority flat rate mailer.
I fomo'd the mug, so it cost about six dollars less to ship.
de Ebaysive Poster 10 mars 2014
11 1
 
7.
(Acronym) Fear of Missing Out

Used when you've either been invited somewhere and can't attend for one reason or another. Or, when you haven't been invited somewhere and everyone else is going.
Kate: "Have you been invited to the hottest party of the year next week that everyone is going to?"

me: "What invite? No, I'm not. Is everyone going to be there? I've got serious FOMO"
de Jenspen 12 août 2009
66 58