EDIT: Without a proper picture, it will be very difficult to guess which award you are talking about. In any case, you can view all of these awards in game from the main menu under Extras -> Stats. Scroll through all of them until you find the symbol you are talking about.
The only thing that comes to mind is this symbol (top right, bottom of the stack):
If so, that is the Playmakers Award, which is earned for every 3 assists in a single game.
Best Answer
When you score a goal by hitting the ball while your car is upside-down (on its roof).