The process of making something substantiallybetter than its original version, or of having something appear to be significantly better than its similar or comparable predecessor.
(n.) The state or condition of one who has had sex with one's own grandmother in the 1950s, thus resulting in being one's own grandfather in the present/future. This condition may create genetic abnormalities.
Nibblonian: "It's a genetic abnormality which resulted when you went back in time and performed certain actions which made you your own grandfather."
Fry: "I did do the nasty in the pasty!"
Nibbler: "Verily. And that past nastification is what shields you from the brains. You are the last hope of the universe."
Fry: "So, I really am important? How I feel when I'm drunk is correct?"
Nibblonian 1: "Yes. Except the Dave Matthews Band doesn't rock."