to coin a phrase
US /tə kɔɪn ə freɪz/
UK /tə kɔɪn ə freɪz/

1.
借用一句老話, 套用一句俗語
used to introduce a phrase that the speaker acknowledges is not original or is a cliché, often with a humorous or ironic intent
:
•
Well, to coin a phrase, it is what it is.
嗯,借用一句老話,事實就是如此。
•
And, to coin a phrase, the early bird catches the worm.
而且,借用一句老話,早起的鳥兒有蟲吃。