Dumper

noun

1. A small vehicle often used to carry loads and material around, often on building sites.
2. A dropper of refuse, particularly not in landfill sites/recycling sites.
3. One who dumps a boyfriend or girlfriend; the one of a romantic couple who terminates the relationship.
4. A wave that knocks a surfer into the water.
5. A program that outputs the contents of storage or a data structure.