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
Pearlie	PURL-ee	English
Dreda	-	English (Archaic)
Joachim	zho-a-KEEM (French), YO-ah-khim (German), yo-AH-khim (German), yaw-AH-kheem (Polish), JO-ə-kim (English)	French, German, Polish, Judeo-Christian Legend
Shinju	sheen-joo	Japanese
Iliya	-	Bulgarian
Peony	PEE-ə-nee	English (Rare)