Dictionary

rattlebrain

noun rat·tle·brain \ˈra-təl-ˌbrān\

Definition of RATTLEBRAIN

:  a flighty or thoughtless person
rat·tle·brained \-ˌbrānd\ adjective
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Examples of RATTLEBRAIN

  1. <in a medical situation of this seriousness we don't need some rattlebrain running around in a panic>

First Known Use of RATTLEBRAIN

1709

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