La Minute Anglaise

To drink like a fish

Like a fish out of water

A drop in the ocean

It takes two to tango

For a song

To fiddle while Rome burns

To blow your own trumpet

To call the tune

To face the music

A little long in the tooth

To cost a pretty penny

To let the cat out of the bag

To take the biscuit

To bend over backwards

Let's call it a day

The penny dropped

You can say that again

To get under someone's skin

Birds of a feather

The proof is in the pudding