Data Swamp

Data Lake is a repository of data stored in raw format (CSV, JSON, XML, text, binary, documents, etc.), in contrast to a traditional (relational) Database that enforces strict predefined schema (where data is arranged in tables and columns).

Data Swamp is a Data Lake is so messy that it is unusable and does not allow you to find or get value from your data.

credits:
Sound effects obtained from https://www.zapsplat.com
Sound Bible http://soundbible.com/royalty-free-sounds-1.html