| Kenneth G. Wilson (1923). The Columbia Guide to Standard American English. 1993. |
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| hyper (adj.) |
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| is slang meaning excitable, keyed up, high-strung, as in The youngster was in a hyper state, unable to sit still. See HYPERACTIVE. | 1 |
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| | | The Columbia Guide to Standard American English. Copyright © 1993 Columbia University Press. |
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