Topic summary
Recursive
Extracted from the Wikipedia article Recursion.
Recursive humor
Recursive acronyms are other examples of recursive humor. PHP, for example, stands for "PHP Hypertext Preprocessor", WINE stands for "WINE Is Not an Emulator", RPM stands for "RPM Package manager", GNU stands for "GNU's not Unix", and SPARQL denotes the "SPARQL Protocol and RDF Query Language".