As has @Sven Yargs has said, 'Your answer seems to be heavily weighted toward personal opinion as opposed to objective analysis—but this site especially prizes answers that have an identifiable basis in verifiable fact rather than just opinion....' 'I've never heard it' is hardly confidence-inspiring; I'd restrict such subjective responses to comments (in spite of the people who don't like 'responses' there).

The fact that it isn't commonly used tells me enough, thanks. Now I'm just wondering if I'm part of then French hipster group or not.

As soon as I decide to ask a question on such platform I sign the implicit agreement "I accept biased answers". It's quite obvious that people hanging around here are not representative of all english speakers anyway (rules are not representative either). But if you can link me a statistically valid survey on the use of 'notif' I would be very happy, but I'm not sure anyone would waste money on that matter :D.

I've never heard it either. I'm a native English speaker. Though, same on the 'totes amazeballs' front.

Apparently it's as hipster as Kellogg's cornflakes, which didn't strike me as particularly hipster dailymail.co.uk/news/article-2105802/…

Personally, if I saw "notif" I would pronounce it like "motif" and wonder whether it was a typo or some kind of slang for opposite or lack of a motif

@EdwinAshworth I don't usually give opinion-based answers and initially intended to post it as a comment but my fingers slipped. I'm happy with the positive ratings though!

I'm very unhappy with them. I think they imply that many people don't care about the site's stated aims. And I think this is the sort of thing that can put off serious enquirers.

-1 I've never heard it either but the second line is kinda unnecessary and I don't even associate "totes amazeballs" with any of those groups.

I'm a native speaker and have worked in IT for over 20 years in America and never heard it used either; common short hands for "notification" which I have heard are: "notice," "pop-up," "note," and (only from two particular, older people) "tickler."

@Azor-Ahai Then you don't know those groups. The OP is spot on, and "totes amazeballs" is a common phrase in that crowd and is well known in popular culture with British english at least.

@i-CONICA I've never hear anyone I would call "hipster" say "totes amazeballs." Highschoolers, maybe. But that's besides the point.

@EdwinAshworth: In general, we want answers like you noted. But, for a question like this, where I don't think anyone has ever heard the word the OP proposed, we can only really answer personally and then see if the upvotes agree.

@palswim If true, 'where I don't think anyone has ever heard the 'word' the OP proposed' means it's definitely an off-topic question.

@EdwinAshworth How is this off-topic if the word has never been heard of before? It's a very reasonable question to ask and content-wise on-topic to ask if a given thing is a word or not.

If the ??? has never been heard of before (let me suggest intercalifragilomanticore) it can't possibly have been accepted into the lexicon. You introduced the 'if it has never been heard of before' caveat.

@EdwinAshworth That doesn't make it an off-topic question. They don't know if it has been herd before.