Top Definition
an avid follower of the postulates of modern astronomy, esp that of comets and cometary debris.
Oortism. the idea that a huge cloud of debris envelopes our solar system, supplying us with comets at regular intervals.
Oortistic. one who blindly favours the view of Oortism.
'...Jeff said Armageddon was going to happen on Tuesday afternoon, that's why he's stockpiling ICBMs and safety nets, i don't know what he's been reading but i think he may have gone a bit Oortistic.'
by shakinglikeafool October 17, 2007
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