[noun] [C]She always takes a pocketful of tissues (= as many as a pocket will hold) with her when she goes out with her children.If you say someone has a pocketful or has pocketfuls (of money), it means they have a lot of money.They won pocketfuls of money playing cards.
POCKETFUL
Meaning of POCKETFUL in English
Cambridge English vocab. Кембриджский английский словарь. 2012