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rattlebrain

[rat-l-breyn] /ˈræt lˌbreɪn/
noun
1.
a giddy, empty-headed, talkative person.
Origin of rattlebrain
1700-1710
1700-10; rattle1 + brain
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Slang definitions & phrases for rattlebrain

rattlebrain

noun

A silly or stupid person; scatterbrain: Mother would like to travel around but not with an old rattlebrain like you driving (first form 1709+, second 1641+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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