hottop

0Hi!02br
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00It came on, eating up the blue sky and the fresh black 01u00hottop02u00 with equal ease. Even twenty feet away the line of demarcation was perfectly clear. I had the nutty feeling that I was watching some extra-good piece of visual effects, something dreamed up by Willys O'Brian or Douglas Trumbull. It happened so quickly. 02br
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00The blue sky disappeared 01u00to a wide swipe02u00, then to a stripe, then to a pencil line. Then it was gone. Blank white pressed against the glass of the wide show window. I could see as far as the litter barrel that stood maybe four feet away, but not much farther. I could see the front bumper of my Scout, but that' was all.02br
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00 ***********02br
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00Above is from Mist by Stephen King...02br
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00(1) It's hard to figure what hottop is....02br
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00What is hottop?02br
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00(2) The blue sky disappeared to a wide swipe.... To a swipe? What should it mean?02br
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00The dictionary is saying that swipe is "A sweeping blow or stroke". 02br
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00But still difficult to figure out the meaning....0-