Definicja i Znaczenie "(as|) sharp as a razor"

What is the origin of the idiom "sharp as a razor" and when to use it?

The exact origin of phrase "sharp as a razor" is likely derived from the widespread association of razors with sharpness and precision. This idiom is used as a compliment that highlights a person's ability to think quickly and accurately, make clever judgments, and showcase superior intellect.