know one's ass from a hole in the ground
/nəʊ wʌnz æs fɹəm eː hɒl ən ðə ɡɹaʊnd/
Lack basic understanding or awareness.
“He doesn’t know his ass from a hole in the ground.”Add to my deck
/nəʊ wʌnz æs fɹəm eː hɒl ən ðə ɡɹaʊnd/
Lack basic understanding or awareness.
“He doesn’t know his ass from a hole in the ground.”Add to my deck