Cometh

Cometh: noun. A small solar system body composed entirely of illegal drugs, which when coming close to a star heats up and begins to spew a gas, which could give a herd of hippopotami a high. These unique objects are extremely rare, astronomers have so far observed (and remembered) only 4 in all of history. The closest one is the Leibeck-Strauss-Donald Comet near Alpha Centauri. This fact also puts an interesting spin on the well-known O'Neill play "The Iceman Cometh"