"lift the lid on something "的定义和意义

What is the origin of the idiom "lift the lid on something" and when to use it?

The idiom "lift the lid on something" has its origin in the literal action of lifting the lid or cover of a container to reveal its contents. Metaphorically, the phrase signifies the act of uncovering or exposing hidden or secret information or revealing the truth about a particular situation or subject. It suggests a sense of unveiling or disclosing previously unknown or concealed details, allowing for a deeper understanding or awareness of the matter at hand.