Although the author is not a linguist, as he points out himself in all honesty, it has done a remarkable job of lexicographer. Of course, here and there one could quibble about a term, deplored the absence, or challenge an etymology, but like all the dictionaries, it is a "work in progress" to which have can only wish many reissues. With this dictionary in hand, often cryptic texts raps should (almost) have a secret. Any slang of the suburbs represents sleep and already a reference book.