The idea of a cheap family vehicle that uses powered flight instead of rolling along on the ground. Popularized by cartoons and science fiction, it was widely expected in the late 20th century to become a reality "real soon now."

In common usage, it represents a shattered hope for the future.
Carbon nanotubes? That's great, but where's my fucking flying car already?
by Nomikos September 26, 2006
A slogan among people including anarchist,neohippies ect. who are disapointed with the 21st century.
The 21st century sucks. Where's all the flying cars?
by Deep blue 2012 May 22, 2010
One of Phineas and Ferb's inventions. Legend has it that it's still pulling to the right to this very day.
Phineas: "The Flying Car of the Future, Today, is still pulling a bit to the right."
by sks316#2523 November 6, 2019