naked as the day one was born

ADJECTIVE
29 LETTERS · STARTS WITH N

naked as the day one was born is a valid 29-letter word worth 40 points in Scrabble and 42 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
N1A1K5E1D2A1S1T1H4E1D2A1Y4O1N1E1W4A1S1B3O1R1N1
1 + 1 + 5 + 1 + 2 + 0 + 1 + 1 + 0 + 1 + 4 + 1 + 0 + 2 + 1 + 4 + 0 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 0 + 3 + 1 + 1 + 1 =40 PTS
DOUBLE WORD → 80TRIPLE WORD → 120
MEANING

What does naked as the day one was born mean?