Meanings
From the fable The Boy Who Cried Wolf, where a little boy amuses himself by crying "wolf" to see the panic he causes in the community, but is consequently ignored when he tries to alert them to a real wolf.
How to pronounce "cry wolf":
AU
To raise a false alarm; to constantly warn others about an imagined threat, thereby failing to get assistance when a real threat appears.
Example: "The politicians would cry wolf at the slightest provocation so when the real threat appeared no one believed them."
Example Sentences
1
Don't cry wolf if there's no real danger.
2
If you cry wolf too often, people will stop listening to you.