Meaning

• To confuse; especially, to lose a pursuer.

  "I never saw her without glasses before, so it threw me off when she got contact lenses."

• To introduce errors or inaccuracies; to skew.

  "The dirt in the apparatus threw off the results."

• Of a horse, to eject its rider.

• To expel, reject, or renounce.

• To give forth in an unpremeditated manner.