Idiom
Has an axe to grind

Works for both side
Has a private agenda
Fails to arouse interest
Has no result

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Idiom
Madhuri might scream blue murder, but I feel Deepali should get the promotion since she is better qualified for the job.

Someone is being murdered and has become blue
Make a great deal of noise and object vehemently
Someone has been murdered with some blue liquid
Suffer from persecution complex

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