Listening to this song, he was so intoxicated he was in absolute ecstasy.
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Often used in romantic, gourmand, or sensual contexts to describe overwhelming pleasure - like floating up to heaven and being struck dead at the same time. Can also be used ironically for unbearable suffering.
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Stronger and more risqué than 飘飘欲仙 ('feeling as light as a floating immortal'). Save it for moments of genuine sensory overload.
