This is a Burroughsian Cutup Machine. Write or paste text on the page and click cutup to see the effect.
You can select different Slice values and all choose to "Rub Out" words.
The slice value determines the size of the chunks that the text is cut into to. Rub out removes words at random.
For more information on Cutup Technique see Wikipedia.
write in recollection and amazement for yourself - kerouac