What is Flyby?
1.
Done by a ricer/meat head after losing a race. It's the racing equivalent of a sucker punch. It goes like this: the race is over and the winning car is slowing down but the losing car just keeps going and flies by at (what seems to them, at least, to be) a great rate of speed. The losing car will most likely resemble the sound of an amtrak train (meat head) or a weed wacker (ricer).
See also,
"Did you see that guy? He just did a flyby to me after I already smoked him.
See
2.
Done by a
I saw a Z hand a ricer his ass, who promptly did a flyby.
See