nounthe practice of borrowing at one rate of interest and lending the same money short-term at a higher rate (used to borrow on overdraft, when short-term deposit rates are higher)U.S.the practice of buying securities and then selling them quickly the practice of borrowing at one rate of interest and lending the same money short-term at a higher rate (used to borrow on overdraft, when short-term deposit rates are higher) the practice of buying securities and then selling them quickly