not bat an eye

also not bat an eyelid

to not show any reaction Mom didn't bat an eye when I told her I was getting married.

Usage notes: also used in the form without batting an eye with the same meaning: She can give a formal dinner for thirty without batting an eye.

/eyelash Informal

To show no emotion; appear unaffected: The reporter didn't bat an eyelash while reading the gruesome news.

Name	Pronounced	Usage
Karcsi	-	Hungarian
Trudie	TROO-dee (English), TRUY-dee (Dutch)	English, Dutch
Sabina	[sə'bainə]
Maala	-	Biblical Latin, Biblical Greek
Helka	HEL-kah	Finnish
Connla	-	Irish Mythology