look through a millstone

To have exceptional powers of perception. A millstone is opaque and thus is impossible to see through. I knew he was a dishonest person the minute I met him. I can look through a millstone, you know.

Common Names:

Name	Pronounced	Usage
Danika	-	English (Modern)
Markos	-	Greek, Ancient Greek, Biblical Greek
Zinnia	ZIN-ee-ə	English (Rare)
Danica	-	Serbian, Croatian, Slovene, Slovak, Czech, Macedonian, English
Vecheslav	-	Medieval Slavic
Stijn	STIEN	Dutch