English · Phrasal verb Attested

stuff up

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

Sense 1

Both English Tiếng Việt

Meaning · English

To ruin or harm.

Nghĩa · Tiếng Việt

Làm hỏng hoặc gây hại

Machine-translated — suggest a fix

Where it’s used: Used American English

Don't drink tonight, because it'll stuff you up before your business trip.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)

Sources & notes

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

Both English Tiếng Việt

Meaning · English

To make a big mistake.

Nghĩa · Tiếng Việt

Làm sai lầm lớn

Machine-translated — suggest a fix

Sources & notes

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

Both English Tiếng Việt

Meaning · English

To cause (the nasal passages) to be blocked.

Nghĩa · Tiếng Việt

làm tắc nghẽn

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 “stuff up” mean?

To ruin or harm.

Is “stuff up” formal or informal?

stuff up is generally slang.

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