Singapore Math, So Cheem 

When someone describes the math taught in Singapore schools as being too difficult to understand, or complains that young students are unhealthily exposed to an obscene number of brain-unfriendly math questions—“cheem” means “deep” in the Chinese dialect Hokkien.

Ahmad who could hardly understand Mr. Goon’s lessons told his parents: “Singapore math, so cheem. I gave up!”

Singapore Math, So Cheem by MathPlus May 14, 2021