Определение и Значение "[take|blow] the lid off {sth}"

What is the origin of the idiom "take the lid off something" and when to use it?

The idiom "take the lid off something" originated from the literal act of removing a lid or cover from a container, revealing its contents. The phrase is used figuratively to emphasize the act of bringing something to light, often with significant impact or consequences. It conveys the idea of unveiling the truth and disrupting the status quo.