Top definition
a term used to describe the rising tide of "fake" celebrities. Folks like Paris Hilton, Nichole Richie, and Kim Kardashian et.al. who are not famous for anything in particular other than being famous. Pronounced Celebri-NOT the term is ironic in that it evokes real professions like "astronaut", but implies that these attention whores are "not" celebrities but are trying really hard to become ones.
Paris Hilton wishes she was a celebrity, but she is a celebrinaut.
by Jeremy Gold March 19, 2008
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