Humdinger (noun)

1. An exceptional or extraordinary person or thing.
2. A striking or impressive person or thing.

Origin:

The word humdinger was first recorded in the early 20th century, as a colloquial term. its origin is uncertain, but it is thought to be a combination of "hum" meaning to make a low humming sound and "dinger" meaning "a striking or impressive thing".

Examples:

1. That party was a real humdinger, one of the best I've ever been to!
2. He"s a humdinger of a singer, one of the best I"ve ever heard.
3. She's a humdinger of a cook, her meals are always delicious.
4. The new car is a humdinger, it's got all the latest features.
5. The new film is a humdinger, it"s one of the best I"ve seen in a long time.