pudding head

NOUN
12 LETTERS · STARTS WITH P

pudding head is a valid 12-letter word worth 20 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3U1D2D2I1N1G2H4E1A1D2
3 + 1 + 2 + 2 + 1 + 1 + 2 + 0 + 4 + 1 + 1 + 2 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does pudding head mean?