🪰 Fly
"A fly on the wall"
Meaning
Someone who quietly watches or listens without being noticed.
About the fly
Flies are small, fast, and easily swatted away, so their idioms describe minor irritations and vulnerability.
Example sentence
She wanted to be a fly on the wall during the secret meeting.
Test yourself
Which idiom means...
Someone who quietly watches or listens without being noticed.
More fly idioms
FlyIdiom
"Kill a fly with a cannonball"
To use too much force for a small problem.
FlyIdiom
"Dropping like flies"
Many people or things failing, leaving, or becoming sick quickly.
FlyIdiom
"Fly in the ointment"
A small problem that spoils an otherwise good situation.
FlyIdiom
"Bug-eyed"
Very surprised, with eyes wide open.
FlyIdiom
"Fly in the ointment"
A small problem that spoils a good situation.