What does fly on the wall mean in English?

You can learn fly on the wall Pronunciation, Grammar & Synonyms in this most authoritative English Dictionary.

fly on the wall Meaning, Definition, Pronunciation, Grammar & Synonyms❤️

0 If you say that you would like to be a fly on the wall on an occasion, you mean that you would like to hear what will be said or see what will happen while not being noticed:
- I'd love to be a fly on the wall when those two get home!
1 A fly-on-the-wall television programme is one in which the people involved behave normally, as if they are not being filmed:
- a fly-on-the-wall documentary

The programme was a "fly-on-the-wall" documentary and showed fishermen and enforcement officers going about their business and speaking frankly.
It was a fly-on-the-wall documentary series, seen by many as the precursor to reality television.
The fly-on-the-wall series also follows their lives as they produce and release their debut album and launch themselves into the fashion world.
The show used a mix of fly-on-the-wall style observational scenes, informal interviews, home movies, and other material.
The documentary is described as a fly-on-the-wall film vrit.
The fly-on-the-wall footage is intercut with subsequent interviews with staff, patients and relatives giving their perspectives and background on the events shown.
The format of the show was mostly fly-on-the-wall style, in that the hosts rarely acknowledged the existence of the microphone.