Uneducated young man.
The meaning of the above quotations is: (1) she could never get to care for the district visiting; (2) I considered it the very thing she would accept, fall in with.
Another, rather common sense of the expression is: to understand.
»I’m a copper and I know my book,
You can tumble by my saucy look.»
(I am a constable and I know the tricks,
as you can understand by my saucy look.)
(A Street Ballad. 1900.)