The one stream of poetry which is continually flowing is slang. —G. K. Chesterton One of the many benefits of owning the two-volume New Partridge Dictionary of Slang and Unconventional English (Routledge), besides the sheer size of the thing up there on a shelf with your other weighty reference books, is that you can dip in just about anywhere and enjoy the exuberant, endless display of human inventiveness with language. Let me demonstrate by flipping open volume 1 to . . . dick, as chance would have it. Besides ten meanings for that word, all familiar to an American speaker