Definition of "fluster"

fluster

/ˈflʌstə(ɹ)/

verb
third-person singular simple present flusters, present participle flustering, simple past and past participle flustered
1. (dated) To make hot and rosy, as with drinking.
  Quotations
  His practice of flustering himself daily with claret.
  1849–1861, Thomas Babington Macaulay, chapter 20, in The History of England from the Accession of James the Second, volumes (please specify |volume=I to V), London: Longman, Brown, Green, and Longmans
2. (by extension) To confuse; befuddle; throw into panic by making overwrought with confusion.
3. (intransitive) To be in a heat or bustle; to be agitated and confused.
  Quotations
  the flustring, vain-glorious Greeks
  1692–1717, Robert South, Twelve Sermons Preached upon Several Occasions, 6th edition, volumes (please specify |volume=I to VI), London: […] J[ames] Bettenham, for Jonah Bowyer, […], published 1727
noun
plural flusters
1. A state of being flustered; overwrought confusion.