Sentence:  2006, Sue Owens Wright, "How to Determine If Your Dog Is an Einstein&mdash;and What to Do If He's a <WSD>Scooby Doo</WSD>" [http://books.google.com/books?id=CB6xLa27xnkC&lpg=PP1&pg=PP1#v=onepage&f=false] 
Meaning of the word marked with <WSD> tags:  The cartoon dog from that cartoon, noted for his trouble-causing lack of sense and almost understandable vocalization.