English · Idiom Attested 18+

hard as Chinese algebra

In real, traceable use. Part of the curated seed collection; community review is coming.

Sense 1

Both English Tiếng Việt

Meaning · English

Very difficult.

Nghĩa · Tiếng Việt

Rất khó

Machine-translated — suggest a fix

Where it’s used: Used American English

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

Both English Tiếng Việt

Meaning · English

Very hard in texture, especially: having a very firm erection.

Nghĩa · Tiếng Việt

Cứng và khó

Machine-translated — suggest a fix

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).

What does “hard as Chinese algebra” mean?

Very difficult.

Is “hard as Chinese algebra” formal or informal?

hard as Chinese algebra is generally humorous.

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