English · Slang Attested

MST

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

Both English Tiếng Việt

Meaning · English

To mock a work (typically a fanfic) by inserting satirical commentary.

Nghĩa · Tiếng Việt

Đùa một tác phẩm bằng cách chèn bình luận hài hước

Machine-translated — suggest a fix

Where it’s used: Used American English

But you can't quote large chunks, and MSTing a story would seem to me to be across the line into infringement.

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).

Topics: Dated

Common questions

What does “MST” mean?

To mock a work (typically a fanfic) by inserting satirical commentary.

Is “MST” formal or informal?

MST is generally dated, slang.

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