Ernest Hemingway said we best air out this secret only at home. Mark Twain noted this sound had long been banished from the school board. But Roald Dahl (1916-1990) gleefully introduced the rear ...

Halfway through "The BFG," Mark Rylance's eponymous, dream-catching giant sees a particularly wondrous dream (represented as a glowing ball of light) and says of it, "Don't see too many of those ...