upit
A freak who loves to go out and have fun but secretly is a nerd
I am an upit and I can't help it
upitism
A condition one experiences when they are completely self focused and self complimenting, at times to the detriment of others. Someone experiencing upitism can’t think one metre past their own self serving thoughts. They may be a nice person, but it doesn’t matter.
That man has a serious case of upitism