At least it used to be an interesting figure of speech.
Or it may be a figure of speech for thinking a great deal about death.
He had always thought it was a figure of speech.
"She told me that was just a figure of speech."
"Which I guess is no longer just a figure of speech."
Never heard that figure of speech before, but I will remember it now.
He had started to say so, but that was a figure of speech.
I was just using that as a figure of speech, so sorry.
Then she said that was only a figure of speech.
He had considered that too to be a figure of speech.