My mom used to sing this song, and we all giggled and shivered with delight. Anyone know this song?
Part of the chorus goes something like this:

He'll feed, with greed,
on little (boys? girls?)
And puppy dogs
And big, fat snails.
So hurry upstairs
And say your prayers
And tuck your heads
Your pretty curly heads
Beneath the clothes, the clothes, the clothes.