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1.
Derived from the latin roots "omni" and "philia". A person who loves and has sex with everything. Just as a necrophile loves and has sex with dead people.
Patrick is so desparate to get play here at Stevens that he's considering becoming an omniphile.
by H4ce November 01, 2004
 
2.
Someone who "likes" everything on Facebook.
John is such an omniphile he'd hit like on Hitler's status updates.
by TypicalBrunette December 28, 2010