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to blow hot and cold
01
to change one's opinions about something often and quickly, sometimes being enthusiastic and other times indifferent or negative
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IdiomWhat is the origin of the idiom "blow hot and cold" and when to use it?
The idiom "blow hot and cold" is derived from an old English proverb dating back to the 16th century. It is used to describe someone who frequently changes their attitude, feelings, or opinions about something or someone.
Examples
She keeps blowing hot and cold about moving to a new city, making it hard to plan.
His feelings for the project blow hot and cold, so the team is n't sure how committed he is.
