Sneaks Slip 'N SLang - SEP Field

Origin: From Douglas Adams' Hitchhiker's Guide to the Galaxy.

Definition: Phenomon in books andmovies where the populace at large completely ignores something strange and otherwise very noticeable, because it's only of concern to the main characters.

Example: Fan1: There's a giant BAT flying above New York! Nobody noticed?
Fan2: SEP Field.