Fat air

n.

When a person missteps and trips on a seemingly invisible object. It is theorized that the person may have actually ran afoul of a pocket of air denser than the surrounding air.
Guy 1: Connie and I were walking down the hall when she tripped and fell out of nowhere. Landed right on her face!

Guy 2: You sure she didn't trip over fat air? I've seen that happen before.
by goomage May 22, 2010
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