Webster’s Revised Unabridged Dictionary · 1913
Fluster
Flus′ter (flŭs′tẽr), v. t. [imp. & p. p. Flustered; p. pr. & vb. n. Flustering.] [Cf. Icel. flaustra to be flustered, flaustr a fluster.] To make hot and rosy, as with drinking; to heat; hence, to throw into agitation and confusion; to confuse; to muddle.
His habit or flustering himself daily with claret. Macaulay.
Flus′ter, v. i. To be in a heat or bustle; to be agitated and confused.
The flstering, vainglorious Greeks. South.
Flus′ter, n. Heat or glow, as from drinking; agitation mingled with confusion; disorder.