This phrase is mostly used to reveal negative aspects, such as misconduct or crimes. When the report was published, it lifted the lid on the unethical practices of the company.
Pro Tip 2/3
Investigative Tone
It implies that someone has done research to uncover the hidden information. The documentary aimed to lift the lid on the clandestine surveillance operations.
Pro Tip 3/3
Surprising Revelation
The phrase suggests that the information revealed is surprising or shocking to the public. Her memoir lifted the lid on the struggles she faced in her early career.