not know b from a battledore
not
ˌnɒt
not
know
nəʊ
new
b
bi:
bi
from
frɒm
from
a
a
a
ba
ba
ba
ttle
təl
tēl
dore
dɔ:
daw

Kahulugan at ibig sabihin ng "not know B from a battledore"sa English

not know b from a battledore
01

used to imply that someone is completely ignorant or uneducated 

salawikain
Mga Halimbawa
When the new employee started working, it was clear that they didn't know B from a battledore when it came to the company's products. They had to undergo extensive training to catch up with their colleagues. 
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