English phrase from drama scenes

What Does "but first thing" Mean?

Learn what "but first thing" means, when people say it, and how to use it naturally in English.

Intermediate
Rude
Harsh
Warn

But first thing, you're going to run for the hills.

It means the speaker is warning someone to get away quickly because trouble is coming.

From I'M Obsessed With My Boss Part Ii, Episode 36

When do people say this?

Scene Context

The speaker tells someone they should back off or leave quickly.

Usage Scenario

This is often used jokingly or dramatically, but it can sound threatening in a real fight. It is not appropriate in polite conversation.

Better ways to say it

1
You should run for the hills.
2
Better run now.
3
You'd better get out of here.

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