Word: 窟窿 (kūlong) 窟窿 dictionary entry kūlong hole; pocket; cavity; loophole; debt Full dictionary entry for 窟窿 Example sentences using 窟窿 2 sentences, showing page 1 of 1. 他拿钱去填赌博的窟窿。 Tā ná qián qù tián dǔbó de kūlong. He used the money to cover his gambling debts. 袜子破了一个大窟窿。 Wàzi pòle yí gè dà kūlong. There's a big hole in my sock.