not know one's ass from one's elbow

تعریف و معنی "not know one's ass from one's elbow"در زبان انگلیسی

not know one's ass from one's elbow
01

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to be incapable of understanding even the simplest concepts
{not} [know] {one's} ass from {one's} elbow definition and meaning
IdiomIdiom
OffensiveOffensive
example
مثال‌ها
I asked him to fix the computer, but he does n't know his ass from his elbow when it comes to technology.
She claimed to be an expert chef, but she could n't even boil water. She does n't know her ass from her elbow in the kitchen.
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