| brain-teaser or brain-twister | |
| —n | |
| informal a difficult problem | |
| brain-twister or brain-twister | |
| —n | |
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| the offspring of a zebra and a donkey. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |
brain-twister definitionand brain-teaser
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