a fly on the wall
 

* 1.able to hear and see what a fly would see and hear I'd like to be a fly on the wall in the Judge's chambers

English Related Words* a babe in the woods

* a bar fly

* a bird in the hand is worth two in the bush

* a blot on the landscape

* a bolt from the blue

* a brand from the burning

* a buck of the first head

* a bun in the oven

* a cast of the eye

* a chip of the old block

* a chip off the old block

* a dog in the manger

* a drain on the resources

* a drop in the bucket

* a face like the back of a bus