"I have finally achieved overness from the governess, with whom I had a long and passionate affair in the west wing."
"You had better be achieving 'overness' from reading that particular author with whom you had a five year affair, or I'll go apeshit on your self-pitying alabaster ass."
2. Can also be used much like the slang term "cool" to describe something as good or desirable.
2. That dress is the overness.