noun
test breaking; breaking bricks, tiles, etc.
Martial arts term for breaking objects such as bricks, tiles, or boards as a demonstration of power or technique.
空手の試し割りで、彼は瓦を十枚割った。
In a karate test breaking, he broke ten tiles.
試し割りは、打撃の威力を示すために行われる。
Test breaking is performed to demonstrate striking power.
瓦割り specifically refers to breaking roof tiles, while 試し割り is a broader term for test breaking of various materials.
Compound of 試し (tameshi, 'trial, test') and 割り (wari, 'breaking, splitting').