one-off

one-off

An isolated occurrence; something that happens just once. Oh, that class was a one-off—my interest in French was dead by the time the semester ended. I swear, I don't like him—our kiss was just a one-off! Their performance was just a one-off—they won't be touring.
Farlex Dictionary of Idioms.

a ˌone-ˈoff

(British English)
1 a thing that is made or that happens only once and not regularly: This plate is a one-off produced by Minton in 1898. ‘Are they going to do another concert in the church this year?’ ‘I don’t think so. It was just a one-off.’
2 (informal, humorous) a person who is quite unlike other people: There’ll never be another Charlie Chaplin. He was a one-off.
Farlex Partner Idioms Dictionary
See also:
  • a one-off
  • cast stones against the wind
  • be strong on (something)
  • be strong on something
  • by inches
  • dissatisfied
  • dissatisfied with
  • dissatisfied with (someone or something)
  • by dint of something
  • by dint of something/doing something
References in periodicals archive
Preliminary EBIT, excluding the announced one-off costs, amounted to SEK3,311m, as compared to SEK3,114m in Q2 2017, corresponding to an adjusted operating margin of 15.7%, as compared with 16.1% in Q2 2017.
The rewards are far less in Scotland but it is felt a one-off match would create a dramatic climax to the campaign.
However, under the new plans - approved by the Shura Council yesterday - a private sector employee needs to work only for five years before they can apply for a one-off payment that will include all of theirs, their employer's and the government's contributions to their pension fund.
"Despite the reduction in revenue, there was a significant increase in operating profit (EBIT before one-off items), which climbed from E1.9m ($2.07m) to E10.1m ($10.98m)," said the company.
Reuters -- Egyptian bank EFG-Hermes plunged to a net loss last year, hit by one-off charges including a writedown in the value of certain investments.
When RNs and ENs achieve the proficient step on the PDRP scale, they will be entitled to a one-off, gross payment of $2500 and when they achieve the expert step, they will be entitled to a one-off gross payment of $4000.
THE Dark Knight has risen courtesy of a special one-off Nissan Juke Nismo to celebrate the brand's partnership with Warner Bros and the release of the third film in Christopher Nolan's Batman trilogy on DVD and Blu-Ray.
"But I think a semi-final at Wembley is a one-off, and I think a local derby is a one-off, so put the two together and there's always that element of FA Cup fate."
"I wish it had been a one-off game because it has more of a final feel to it then," said the New Yorker.
EASYJET is to pay a one-off dividend of pounds 150m as it looks to cool a feud with its founder and major shareholder.
He said a one-off tax on bank bonuses by the former Labour government last year raised more than [pounds sterling]3 billion.
The company expects its net sales from continuing operations, excluding Healthcare and Dental Trade businesses, to be some EUR1.9bn (USD2.5bn) and operating profit, excluding one-off costs, to reach EUR20m in 2010.
A one-off porter aged in a used Tabasco hot sauce barrel.
Pharmaceutical firm AstraZeneca has put forward a patient access scheme so the NHS pays a one-off fee for Iressa, which is suitable for some patients with lung cancer who have a genetic mutation.
A pounds 2 billion pot is being set aside by the NHS to pay for one-off costs like redundancies and redeploying staff, the Department of Health has confirmed.