This relative flexibility is not primarily important because it allows a settlor freedom to choose a favourite expression.

It was a favourite expression of his.

By performing a potential mate's favourite expressions, or giving them their preferred gifts, they will become infatuated more easily.

"I'm listening," said Julius, and gave vent to his favourite expression.

Gob-smacked,' lantine told her, remembering a favourite expression of his father's.

I can't be for saying,' Rowlands said miserably, although not so upset that his favourite expression was forgotten.

"I can train anything from a rabbit to an elephant", was one of his favourite expressions.

"Hold on to that," Johns said - it was one of his favourite expressions.

Whenever Krefenbac uttered his favourite expression, it meant something was happening.

What are some of your favourite expressions or idioms, in English or other languages?