Top Definition
1. The act of a person or somebody that has an enormous EGO.(see also:BIG EGO)
2. A small creature that has a small brain inside its huge sexual reproductive organs allowing them to have 100% brain power efficiency, Unfortunately they only try to mate all day and eat just enough to stay alive.
1. At my job my boss has a big ego.
2. I think that egonormous finally caught a female.
by CrStigall April 24, 2010

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