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The floating odor found on an airplane, typically the odor emanating from the lavatories shortly after the dinner course served on a long flight.

German: Luft, air (from Middle High German, from Old High German) + Waft
Kevin: I don't like sitting in the last five rows of the airplane.
Chris: Why not?
Kevin: The luftwaftage from the toilets can get pretty bad.
by brown_ct January 18, 2009
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