"Fast forward" means quickly move ahead in time. For example, on a DVD or video player, you can fast forward (push >>) to the start of the film so you don't have to watch the boring adverts.

An expression to mean two years later without explaining everything that went on inbetween the two times.

Just imagine a fast forward button ( >> ).

Hi Terry, Another great question! If you are watching a film and you click the 'fast forward' button, you will move quickly through a boring scene In your sentence, we are moving quickly (pressing the fast forward button) >>>>> through a few years of his life :) I hope that helps! Liam