pushing on a string
n.— «The attempt to pump money into the banking system failed, and as a result, the phrase “pushing on a string” was coined to describe the futility of inflationary policies in this environment.» —“Wisdom from Richard Russell on the Inflation/Deflation Topic” by Jay Taylor HoweStreet.com Nov. 21, 2005. (source: Double-Tongued Dictionary)
Further reading
In the 15th century, the word respair meant “to have hope again.” Although this word fell out of use, it’s among dozens collected in a new book of soothing vocabulary for troubled times. Plus, baseball slang: If a batter...
Eric from West Lafayette, Indiana, wonders which phrase is correct when referring to “making the grade” or “meeting expectations”: Is it cut the mustard or cut the muster? It’s the former, a reference to the strong...