Without more context, it's impossible to know what the creator intended the term to mean.
Possible interpretations:
* A play on "synonym": Maybe it refers to words that are *almost* synonyms, sharing some but not all meanings, or having a similar vibe but not being interchangeable.
* Related to "fuzzy logic": Perhaps it signifies something that is not clear-cut or has a range of possibilities, like a fuzzy logic concept.
* A personal invention: The individual who coined the term might have a specific, unique meaning in mind.
To understand the meaning of "fuzzynym," you would need more information about its context and the person who created it.