In need of a haircut
(Other definitions for shaggy that I've seen before include "Ill-kempt" , "Funny as a story about a type of canine" , "Type of dog with story" , "With long coarse hair" , "Kind of story about a dog?" .)
(Other definitions for unshorn that I've seen before include "still having woollen coat on" , "Of hair or wool, not cut" .)