The phrase "batting an eyelash" centers on showing a subtle emotional response. It's like when something happens, and you react with a quick flutter of your eyelashes, indicating a brief moment of surprise, happiness, or any other emotion. When someone doesn't "bat an eyelash," they remain calm and unflustered.

In short: "Bat her eyelashes" means a woman is subtly trying to attract attention or persuade someone, often through a flirtatious gesture. What Does "Bat Her Eyelashes" Mean? The idiom "bat her eyelashes" conveys that a woman is making a conscious effort to capture someone's attention or persuade them using her eyes.

However, it's frequently paired with negative adverbs or negations, emphasizing the lack of any emotional reaction. When someone says a person "didn't bat an eyelash," they highlight that the individual showed no hint of emotion or response to a situation. In short: It refers to displaying a tiny hint of emotion.

Despite the sudden loud noise, the guard didn't bat an eyelash, a sign of his intense focus. Lo and behold, without batting an eyelash, she recognized the disguised celebrity in the crowd. They didn't bat an eyelash when she arrived late, acting as if everything was normal.