Top Definition
1. Koninklijke Luchtvaart Maatschappij N.V. (Royal Dutch Airlines), the flag carrier airline for the netherlands
2. the release of malodorous flatulence inside the passenger cabin of an airplane. The confined space, pressurized cabin, and necessity of remaining seated with ones seatbelt fastened forces victims of the KLM to be subjected to stanky ass stank without any means of retreat. Analogous to the dutch oven, but specifically tailored to the airborne environment.
When I sat next to my wife on our family trip, i blasted a KLM she had to suffer through my fart gas and remain seated until the captain turned off the fasten seatbelt sign.
by vampirekilla February 24, 2015

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