One-shot (noun)

1. A single attempt or opportunity to do something, typically with the implication that the outcome is final and cannot be undone.
2. A single event or action that is intended to have a lasting effect.

Origin:

The phrase "one-shot" is composed of two words "one" and "shot" , it is used to describe a single attempt or opportunity to do something, typically with the implication that the outcome is final and cannot be undone.

Examples:

1. The company"s new product launch was a one-shot deal, and they couldn"t afford to fail.
2. It was a one-shot opportunity, and he had to make the most of it.
3. The one-shot vaccine was effective in preventing the disease.
4. It was a one-shot deal, and they couldn't afford to make a mistake.
5. It was a one-shot chance to get the job done and they took it.