Pating is short for a patheticperson. The term was first used in the suburbs of Oslo and is now a widely used term. It's not quite as offensive as actually telling someone that they're a pathetic person, and is commonly used among friends when they do something stupid or short-minded. Pating may be shortened with a simple "P".
Example one:
To friends are walking down the street when suddenly one of them trips in his own laces.
Friend 1: Haha, you're such a pating!
Friend 2: Gaaaah, I know... I'm nothing more than a P...
Example 2:
You're walking down the street and suddenly see a dude with his pants stuffed in his tennis socks.
Normally used by teachers to cover up when they make an idiotic mistake. By saying "Just trying to see if you were paying attention" teachers can make it seem like they meant to make their dumb mistake, when really they're just stupid...