look up any word, like cleveland steamer:
 
1.
Someone who thinks that they are the centre of the universe
Mr A:'Hey Mr B, look over there at that person who is driving in the middle of the motorway at 186.24mph, he must think that the nearest star is emitting its electromagnetic radiation out of his anal sphinctus'
Mr B:'Yeah what an omphalos'
by BenKenTheBest April 07, 2003
 
2.
The religion, however worshipped, of oneself as the center of the universe.
"To ourselves... new paganism... omphalos."

"Ulysses", Chapter 1
by James Joyce
by Sue Dohnim June 16, 2004