something-ghost, gremlin or otherwise that changes your data for unknown reasons that results in material changes in reports to senior management. Usually results in unhappy discussions with said management.
A twisted clown who unleashes their evil by defacating on people's property, often objects with obvious sentimental value.
Max was a long time defacator but his twisted scheme came crashing down when he was caught midloaf, unloading his payload into the cup on the the 18th green at Pebble Beach Golf Course.