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blit

   of a computer's memory to another part, particularly when the
   memory is being used to determine what is shown on a display
   screen.  "The storage allocator picks through the table and copies
   the good parts up into high memory, and then blits it all back down
   again."  See bitblt, BLT, dd, cat, blast,
   snarf.  More generally, to perform some operation (such as
   toggling) on a large array of bits while moving them.  2. Sometimes
   all-capitalized as `BLIT': an early experimental bit-mapped
   terminal designed by Rob Pike at Bell Labs, later commercialized as
   the AT&T 5620.  (The folk etymology from `Bell Labs Intelligent
   Terminal' is incorrect.  Its creators liked to claim that "Blit"
   stood for the Bacon, Lettuce, and Interactive Tomato.)