On Wikifunctions, vandalism has a very specific meaning: editing (or other behavior) deliberately intended to obstruct or defeat the project's purpose, which is to create a free database of functions to support the Wikimedia projects and beyond, especially Abstract Wikipedia.
Examples of vandalism include:
- Creating joke functions without a conceivable use case
- Typing nonsense into a function definition
- Maliciously changing the definitions of objects to be incorrect
- Deliberately breaking implementations