The text is a play on the phrases 'love me tender' and 'love me sweet,' which are lyrics from an Elvis Presley song, but it adds an unexpected twist with 'push me out at 12,000 ft,' which is a reference to skydiving. The humor arises from the juxtaposition of romantic phrases with the incongruous and extreme act of being pushed out of a plane, rather than from a play on words or similar-sounding words.
Love me tender / love me sweet / push me out at 12 , 000 ft