send up a trial balloon การใช้

A non-joking equivalent would be " to send up a trial balloon ."
What Galliano wanted to do, in effect, was to send up a trial balloon that said, Be happy.
We don't know the details of the Bush plan because like so many others that he sends up as trial balloons, that one turned into the Hindenburg.
Certainly, when a seasoned public servant like David Dinkins sends up a trial balloon, he deserves respectful consideration and full recognition that he has earned the right to make another run for mayor of New York City if he chooses.
Those doing the leaking always have motives _ to get information to the public that otherwise would be kept private, to cast someone in a bad light or to send up a trial balloon about a possible policy change, to mention a few.