透支

tòu zhī

(banking) to overdraw

to take out an overdraft; an overdraft; to overspend (i.e. expenditure in excess of revenue); (old) to draw one's wage in advance; (fig.) to exhaust (one's enthusiasm, energy etc); to damage a natural resource through overuse

透

tòu

(bound form) to penetrate; to seep through

支

zhī

to support