EXAMPLES FROM THE WEB FOR CATCH PHRASE
The problem of a human politics is not solved by a catch phrase.
I know it is a catch phrase elsewhere that the colored troops fought nobly, but I testify to what I saw and heard.
I recognized the latter words as the catch phrase of a moral story in an ancient reader used in my boyhood school days.
A third (and more intelligible) suggestion is that the line is simply a catch phrase, without any meaning.
"My country, right or wrong," becomes a catch phrase on the lips of school children.
Economic equality is often summed up in the catch phrase "equal pay for equal work."
Then people will learn to banish to the lumber room of the past the catch phrase about "the unpractical German."