Top Definition
It is pronounced - EFF-A-LICK-REE-UM. The z is silent.

The slight hint of fog you see rising up from the ground. It's not actually fog nor is it smoke. In scientific studies it has been proven to have a distinct smell, that of a ghost fart. When this phenomenon takes place be sure to get a quick whiff but, be sure to hurry upon seeing this "fog". It does not last long since ghosts tend to disappear quickly.
In many cases, Effaliqriumz, has been seen following behind people, rising from the ground (or plants), or slowly falling from the sky. In very rare cases it has been seen in people's houses and cars.
by Two Step Tim November 26, 2006

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