Meaning of whipstall

whip•stall

Pronunciation: (hwip'stôl", wip'-), [key]
— Aeron. Aeron.
—n.
  1. a stall during a vertical climb in which the nose of the airplane falls forward and downward in a whiplike movement.
—v.t.
  1. to cause (an aircraft) to undergo whipstall.
—v.i.
  1. (of an aircraft) to undergo whipstall.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.