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Meaning of highball

high•ball

Pronunciation: (hī'bôl"), [key]
— n.
  1. a drink of whiskey mixed with club soda or ginger ale and served with ice in a tall glass.
    1. a signal to start a train, given with the hand or with a lamp.
    2. a signal for a train to move at full speed.
  2. a hand salute.
—v.i.
  1. to move at full speed.
—v.t.
  1. to signal to (the engineer of a train) to proceed.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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