Top Definition
the act of being habitually and extremely late, or delaying a meeting until it is too late and must be cancelled.

The person performing the act typically will deny that it happens, or claim that it only happens rarely.
person #1: "where is he, he said he was on his way here an hour ago?"
person #2: "he is just masoning out we might as well start without him."
by SKOA February 20, 2011

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