Pocket :
a pocket in a dress or coat: a warning to be more careful with storing your valuable objects and money
your own pocket: you will receive a gift
put something into a pocket: you will lose a thing
a full pocket: an opportunity to earn money
an empty pocket: extra expenses
pull something out of a pocket: you will find something you’ve lost or abandoned
look for something in a pocket and not be able to find it: it announces an unpleasant surprise
a pocket full of holes: you cannot manage finances well