| 词汇 | not-know-ass-from-elbow |
| 语种 | 英语、汉语、英汉翻译、汉英翻译 |
| 释义 | not know your ass from your elbowidiom offensive a rude phrase meaning to be stupid and unable to understand very simple things: My boss has proven time and again that he doesn't know his ass from his elbow. |
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