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I can say what I want, I still got Nazi bullets in my ass.
— Grandpa • Little Miss Sunshine

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker invokes bullets still lodged in his body as a reason he should be allowed to say whatever he wants. The claim links past suffering with present freedom to speak. Its blunt, crude phrasing makes the demand sound defiant and deliberately resistant to polite restraint.
Context reviewed