The order from Berlin is called a thunderclap by Franz, because it was a complete shock for him. He had never thought that he would be deprived of the right of learning his native language.
As a consequence of this Franz was in a deep state of shock, his behaviour towards M Hamel and his school suddenly changed.
Because most learners don't really focus , they'llbe going through social media; most learners prefer to take pictures on the board of work than writing in theirs books immediately.
"I have all the money in the world" is an obvious Hyperbole, or otherwise known as an exaggeration. No one has "all" the money in the world, however many of us wish that was the case.
If when you are getting out of bed in the morning, you are offered a “jentacular” cup of tea, don’t be offended: it means just about anything (in this case, tea) related to breakfast.