Superlative form of shaggy: most shaggy.(adjective)
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Use "shaggiest" in a sentence
"The series lasted for six years, and the final episode of St. Elsewhere went into one of the hoariest, shaggiest, worst science fiction and fantasy cliches of all, stopping to offer homage to all kinds of major TV shows along the way."
"So, once we came out again, I brought Juss to one of the horses (the shaggiest horse I have had the pleasure to pat) and told him it was a person in a costume."
"Master Micawber was hardly visible in a Guernsey shirt, and the shaggiest suit of slops I ever saw; and the children were done up, like preserved meats, in impervious cases."