To dream of pulp represents feelings about an issue being exhaustively dealt with or reduced as much as humanly possible. Problems that have been “reduced to a pulp.”
Example: A man dreamed of stirring dark purple pulp. In waking life he was aggressively investigating whether or not his wife had cheated on him. He couldn’t let the issue rest no matter how much he couldn’t find guilt on wife’s part. he had investigated the issue to the point where he couldn’t investigate any further.