- 窟窿眼 kūlongyǎn small holesmall hole; aperture
- 填窟窿 tiánkūlong to pay off a debt(colloquial) to make up for a financial deficit or pay off a debt; literally 'to fill a hole'
- 拉窟窿 lākūlong to go into debt(colloquial) to incur debts; to borrow money
- 捅窟窿 tǒngkūlong to poke a holeTo poke a hole; to puncture; also used figuratively to mean getting into debt or taking out loans.
- 窟窿眼儿 kūlongyǎnr small holesmall hole; aperture; puncture; small opening
