Top Definition
An ///M-Postor is someone who puts an ///M emblem on their standard model BMW that is clearly NOT an ///M model BMW. Someone who engages in deception by trying to pass off their stardard BMW as a more expensive ///M model BMW. This behavior is highly offensive to true BMW enthusiasts and is cause for immediate banishment from any BMW forum or club.
That poser has an M5 emblem on his 525i...what an ///M-Postor.
by DRANGED550 February 20, 2010

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