Grammar Pattern: Verb+だけ+Same verb て-form

Question

I have found two examples of this kind of pattern from anime and I wonder how it’s specifically used:

Black Lagoon, main character thinking to self (inoculated) that they’re bad at keeping shut in interrogations:

おっさんと話した時もついつい偉そうなこと言っちゃった
よく考えたら俺言うだけ言って言い逃ればっかだよな
When I talked to the old guy I acted high and mighty.
Now that I think about it, I tend to blab all I want... ...then talk myself outta the situation.

Kill la Kill, Ryuko is mad that Kiryuin Satsuki has confided herself in a fortress of sorts when she thought they would fight:

あおるだけあおっといて自分は鉄壁の防御の中かよ
She whips everybody into a frenzy and then sits behind an impenetrable shield?

The second is example is contracted ておく, but this seems to be a pattern utilizing だけ's meaning of "extent".

Is Verb+だけ+Same verb て-form a common grammar pattern to say something like "verb as much as verb"?
What does it really mean? How is it usually used?

Answer 1

This V₁だけV₁て(V₂しない) is an emphatic way of saying "to do nothing but V₁" or "to only do V₁". It's explained as "JLPTにない文型" in this article: 〜だけ〜て｜日本語能力試験　JLPTにない文型.

While common, its use is almost exclusively limited to blaming someone, as seen in your examples. I don't know the JLPT level for this, but it's common enough and I think it's worth remembering this pattern at your level.

(Note that something like 食べられるだけ食べた and 試験を受けるだけ受けてみよう seem to be categorized as JLPT N2.)