one and only
noun1
Idiomatic Only love, sole sweetheart.
- Will you be my one and only?
2
The most talented or famous person (within in a specific context)
- Chesney Hawkes entertained the punters at half-time, and it was Wales' One and Only who was withdrawn ahead of the second-half as Brennan Johnson replaced Gareth Bale who had made just one successful pass in the first-half.2022 November 29, Ian Mitchelmore, “Wales put out of World Cup misery by England as sobering tournament must signal changing of the guard”, in WalesOnline: