The Collaborative International Dictionary of English v.0.48:
Drakestone \Drake"stone\, n. A flat stone so thrown along the surface of water as to skip from point to point before it sinks; also, the sport of so throwing stones; -- sometimes called ducks and drakes. [1913 Webster] Internal earthquakes, that, not content with one throe, run along spasmodically, like boys playing at what is called drakestone. --De Quincey. [1913 Webster]