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1.
A bastardization of "extra-sensory". A term used by someone claiming to have superior knowledge outside a standard Google search. Used mostly by armchair professors claiming to be experts in a particular field, but don't wish to supply proof of a valid degree.
"As someone who works in healthcare*, I have extra-googular sources that prove the gay gene."

*Poster is a bedpan-changer at a nursing home.
by Paulywalnutz December 18, 2007