Invented his own language

Yes indeed, Ben has done this. His language must have been invented as one of his attempts to put himself above his friends. This is how it works:

The letters 'ag' are put in front of each vowel that is pronounced in each word that you speak, 'y's included. This makes what you say very difficult to understand unless you know the trick to it. Here's an example:

"Hello, my name is John Doe" would be said like this:

"Hagellago, magy nagame agis Jagohn Dago".

And similarly, "Help! I'm trapped in a black hole!" would be:

"Hagelp! agI'm tragapped agin aga blagack hagole!"

This language can be easily understood in text format and is designed to baffle people through speech.

Only five people can fully understand this speech AND speak it fluently. These five people are Ben himself, me, Ben's friend Lawrence, Ben's other friend Russell, and, for some odd reason, our History teacher at school. Four of these people, including myself have been taught this language by Ben, but we do not know how the history teacher picked it up.