Definition of chap-book:
(n) :
(dated outside UK and Australia) A man, a fellow.
(n) :
(UK, dialectal) A customer, a buyer.
(n) :
(Southern US) A child.
(v) :
(intransitive) Of the skin, to split or flake due to cold weather or dryness.
(v) :
(transitive) To cause to open in slits or chinks; to split; to cause the skin of to crack or become rough.
(v) :
(Scotland, Northern England) To strike, knock.