平时不烧香，临时抱佛脚

píng shí bù shāo xiāng , lín shí bào fó jiǎopingshibushaoxiang,linshibaofojiao

1. (lit.) to never burn incense when all's well, but clutch Buddha's feet in a crisis (proverb)
2. (fig.) to neglect preparation until the last moment, then act in panic

Study it in Yanamino