"Bobble" she replied.
2. someone who is tremendously psychotic and slightly ditzy
3. the act of being out of it when thinking of/seeing someone one likes
Lucy was being such a bobble the other night because she saw Jim.
Jim "I say we just bobble about and see where we end up."
(2)When sitting in a car, especially 2 or more people, everyone bobbles as they thoughtlessly drive/ride to their destination.