English · Phrasal verb Attested

geek out

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

Sense 1

Both English Tiếng Việt

Meaning · English

To enthuse about a specific topic; to be engrossed in an interest, especially in discussing it with others.

Nghĩa · Tiếng Việt

Say mê về chủ đề cụ thể;迷 vào sở thích

Machine-translated — suggest a fix

Where it’s used: Used American English

Sorry, I didn't mean to spend fifteen minutes discussing the definition of "decimate". I guess I geeked out for a bit.

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 do geeky things; to act geeky.

Nghĩa · Tiếng Việt

Làm việc nhàm chán; hành động nhàm chán

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 be scared, freak out, panic; to hesitate in fear.

Nghĩa · Tiếng Việt

sợ hãi, hoảng loạn, mất bình tĩnh

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 “geek out” mean?

To enthuse about a specific topic; to be engrossed in an interest, especially in discussing it with others.

Is “geek out” formal or informal?

geek out is generally slang.