UPDATED- The line is from Jimmy Neutron. Jimmy and Cindy are stranded on an island together. Sheen, Carl and Libby come to rescue them and Sheen thinks the island and everything else, including himself, are mirages. Sheen says the line as they all lift off in Jimmy's hover car.
Last night as DH was taking the boys to his parent's house, Steven said, "Let's get this mirage on the road!"
10 brownie points for anyone who can tell me what cartoon that line is from.