knucklehead
noun /ˈnʌklhed/
  /ˈnʌklhed/
 (especially North American English, informal)- a person who behaves in a stupid way- Anybody but a complete knucklehead could do the job.
 
| 单词 | knucklehead | 
| 释义 | knuckleheadnoun /ˈnʌklhed/  /ˈnʌklhed/(especially North American English, informal) 
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