Wiktionary
crack a crib
vb. (context idiomatic criminal slang dated English) To break into a house.
Usage examples of "crack a crib".
He'll crack a crib in Scotland one week, and be raising money to build an orphanage in Cornwall the next.
Think of going out on a cold winter's night to crack a crib, knowing that there would be a cup of hot soup waiting for you when you got back, and your slippers all warmed and comfortable.