The definition of stark naked is to not be wearing even one single item of clothing.
An example of stark naked is a baby when it is just born.
Origin of stark-nakedaltered (infl. by stark) ; from Middle English stertnaked, literally , tail-naked ; from stert- ; from Old English steort, tail, rump ; from Indo-European an unverified form (s)terd-: see start
Origin of stark-nakedAlteration by folk etymology from obsolete start-naked, naked to the tail, from Middle English stert-naked : stert, tail; see redstart + naked, naked; see naked.