Cutups are a technique used in painting and writing for producing random results.  You might take a Bible and cut out some interesting, dramatic passages, then take a newspaper and cut out passages at random.  Then you mix them together and extract them, put them together to form a new piece.  The new piece is a garbled mess, but you know that the author was trying to say something, so you rewrite it and clarify the confusing parts.

Then maybe you repeat the whole thing.

Anyway, the results can be fascinating.  I suspect it's a question of personal taste, to a lot of people these are no doubt just a pile of gibberish.