know one’s ass from a hole in the ground

tv. to be knowledgeable; to be alert and effective. (Usually objectionable.) That stupid son of a bitch doesn’t know his ass from a hole in the ground.

Common Names:

Name	Pronounced	Usage
Lea	LE-ah (German, Finnish)	German, Dutch, Swedish, Norwegian, Danish, Finnish, Slovene, Croatian
Fryderyk	fri-DER-ik	Polish
Christy (2)	-	Scottish, Irish
Beste	-	Turkish
Judith	JOO-dith (English), zhoo-DEET (French), YOO-dit (German)	English, Jewish, French, German, Spanish, Biblical
Aubery	['ɔ:bri]