Scud

1. To move swiftly; especially, to move as if driven forward by something.
2. Any swimming amphipod crustacean.
3. A small flight of larks, or other birds, less than a flock.
4. The act of scudding; a driving along; a rushing with precipitation.
5. Loose, vapory clouds driven swiftly by the wind.
6. To be driven swiftly, or to run, before a gale, with little or no sail spread.
7. To pass over quickly.
8. A slight, sudden shower.