Scorcher (noun)

1. A very hot day.
2. A very fast or successful performance or achievement.

Origin:

Origin unknown.

Examples:

1. Today is going to be a scorcher, with temperatures expected to reach 100 degrees.
2. It was a scorcher of a race, with the fastest time ever recorded.
3. It was a scorcher of a performance, he broke the previous record.
4. He had a scorcher of a game, scoring 4 goals in the match.
5. It was a scorcher of a summer, with temperatures reaching record highs.