Meanings
How to pronounce "run hot and cold":
AU
To alternate between two opposite extremes, such as enthusiasm and disinterest or success and failure.
Example: "Henrietta's feelings for Delbert run hot and cold—one minute she's hopelessly in love with him, and the next she can't stand the sight of him."
Example: "The business runs hot and cold; some months our firm doesn't earn enough to cover expenses and other months, we net 400% profits."
Example Sentences
1
Her feelings towards him run hot and cold; sometimes she loves him and other times she can't stand him.
2
Their relationship has always run hot and cold, with constant arguments followed by passionate make-ups.