Translation of peitschen

Yesterday, I heard a very good example to explain my point: On their journey more than ten years ago, the presidential couple Mr. and Mrs. Clinton visited Egypt. They were welcomed by the president.
I slept in the jungle lodge. Dinner was really nice as there was only one restaurant were everybody gathered. My newly acquired friends invited me to join them for dinner and we had a great time.
I was surprised that he charged 5 dollars extra (a total of fifteen instead of ten), because he had to take us to three different locations. I did not buy the whole thing and gave him ten bucks.