List of Humorous Units of Measurement
en.wikipedia.org
en.wikipedia.org
> An "ohnosecond" is the second after one makes a terrible mistake, such as deleting the wrong file or sending a text message to the wrong person, where the person in question can do nothing but say "oh no". The term is believed to originate from Elizabeth Powell Crowe's 1993 novel, The Electronic Traveler.
Reminds me (and probably a lot of devs) of a time when I deployed something breaking to production many years ago :), of course I didn't know it would break production beforehand. Recently, I accidentally deleted my entire shell history which caused me quite a bit of slowdown for some time. I'm quite used to modifying complicated commands with Ctrl+R and fzf; the deletion of my shell was truly horrifying.
Tom Scott, as usual, has a great video about the onosecond (sic):