wacko
adjective /ˈwækəʊ/
  /ˈwækəʊ/
(also whacko)
 (especially North American English, informal)- crazy; not sensible
- wacko opinions
 
Word Origin1970s: from wacky + -o. 
| 单词 | wacko | 
| 释义 | wackoadjective /ˈwækəʊ/   /ˈwækəʊ/ (also whacko)  (especially North American English, informal)
 wackonoun /ˈwækəʊ/   /ˈwækəʊ/ (also whacko)  (plural wackos, wackoes)  (especially North American English, informal)
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