Top Definition
the abbreviation for Vertical Motion Flatulation, or the phenomanon that occours whenever one ascends rapidly though the air, pushing everything inside down. This causes a large amount of gas to exit the person. This happens most readily in aircraft, and because of the enclosed nature of the aircraft, the gas somtimes forms a horrible, near-visible, stench, called a Vmf cloud
Hey Anthony, its true!
Delta makes a bigger vmf than southwest!
by JT3B December 17, 2007

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