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good oil

British  

noun

  1. slang true or reliable facts, information, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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A good oil delivers enough of a burn to cause a catch in your throat and often a cough.

From The Guardian ● Apr. 23, 2017

“A good wine lasts one dinner; a good oil lasts many meals,” said Michele Porcu of I Greppi di Silli.

From New York Times ● May 22, 2015

What were the drivers, where did all this good oil come from?

From Forbes ● Jul. 14, 2014

Motorists who drain good oil out of their crank cases.

From Time Magazine Archive

There were a great many books, some fine engravings, beautiful drawings, and very good oil paintings by Mrs. Edgeworth.

From The Atlantic Monthly, Volume 16, No. 95, September 1865 by Various

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