Apa tegese jumper paku keling wuta?

Kepala lompat paku keling buta: amarga paku keling ora mbungkus kepala paku, iki bakal nyebabake kepala lompat paku keling.

https://www.yukerivet.com/news/the-core-of-the-blind-rivet-is-not-completely-pulled-out-what-is-the-reason-for-the-fracture/