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
Bradford	BRAD-fərd	English
Salome	sə-LO-mee (English), SAH-lə-may (English)	English, German, Georgian, Biblical, Biblical Latin, Biblical Greek
Beck	[bek]
Derrick	DER-ik	English
TomÁS	to-MAHS (Spanish), too-MASH (Portuguese)	Spanish, Portuguese, Irish
Sem	SEM (Dutch)	Biblical Latin, Biblical Greek, Dutch