bat an eyelash

To display a subtle emotional reaction, such as consternation, annoyance, sadness, joy, etc. Generally used in the negative to denote that the person in question did not display even a hint of an emotional response. Mary didn't even bat an eyelash when I told her I was moving out. That guy is dangerous. I heard he killed a man without batting an eyelash.

Common Names:

Name	Pronounced	Usage
Monta	-	Latvian
Levi	LEE-vie (English), LE:-vee (Dutch)	Hebrew, English, Dutch, Biblical, Biblical Latin
Nebuchadnezzar	-	Ancient Near Eastern (Anglicized), Biblical
Ephraim	EE-free-im (English), EE-frəm (English), E-free-im (English), E-frəm (English)	Biblical, Jewish, Biblical Latin, Biblical Greek
Ivo (1)	EE-vo (German, Dutch, Italian), EE-fo (German), EE-voo (Portuguese)	German, Dutch, Italian, Portuguese, Czech, Ancient Germanic
Peadar	PAD-ar	Irish, Scottish