in one ear and out the other; from right to left
Idiomatic expression meaning that something is heard but immediately forgotten, or that information passes through without being retained. The literal meaning 'from right to left' is also used in physical contexts.
His words always go in one ear and out the other.
Even when warned, it's in one ear and out the other, and I forget right away.
without further ado; quickly and efficiently
Describes handling something swiftly and smoothly, often in business or administrative contexts. Implies no unnecessary delay or fuss.
He dealt with the troublesome procedures quickly and efficiently.
The matter was handled without further ado.
Literally 'from right to left'. The idiomatic meanings derive from the image of something passing straight through without stopping, either from one ear to the other or from one hand to the other in a smooth transaction.