Heard in Missouri: "but good!"

[William Salmon]

> I'm used to hearing it especially in contexts of warning or threats,
> or the fulfillment of an action with negative consequences for the
> patient:
>
> "I'm gonna fix your wagon--but good!"
> (only idiomatic reading, no actual wagon-repair being offered here)
>
> "He got me (back), but good!"
> (could refer to physical violence, or being made the butt of a
> practical joke, a revenge set-up, etc.)

Raymond Chandler used this pretty frequently in his characters'
tough-guy talk.

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