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1.
A center around which other things revolve or take information from, to be a Gigantium of social knowledge, for example, dictates a being who witholds such vast quantities of social information and goings on, that others turn to them for gossip and advice.
person 1: "OMG! Did you hear about Emily and Matt?!!"

person 2: "I'm not sure if that's true....maybe you should ask Tom what happened?"

person 3: "Ah yeah... he is such a gigantium of knowledge. Tom knows what's happening with EVERYBODY!"
by Igwig January 17, 2011