English · Slang Attested

up oneself

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

Both English Tiếng Việt

Meaning · English

Smug; arrogant; self-important and self-satisfied.

Nghĩa · Tiếng Việt

Tự phụ, kiêu ngạo, tự hài lòng

Machine-translated — suggest a fix

I don't like her; she is really up herself.

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).

Common questions

What does “up oneself” mean?

Smug; arrogant; self-important and self-satisfied.

Is “up oneself” formal or informal?

up oneself is generally slang.