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I’m not entirely sure that I’ve had enough rum to allow that kind of talk.
— Elizabeth ‧ Pirates of the Caribbean: The Curse of the Black Pearl
Behind the line May contain spoilers.
Our reading
An editorial interpretation.
A prim, playful refusal to entertain some suggestion: the speaker says they haven't had enough rum yet to allow that kind of talk. It's a dry way of saying the topic is too much for sobriety, using the drink as a joking measure of how much nerve or tolerance is needed.
Context reviewed