Here are some possibilities:
* A misspelling: It could be a misspelling of another word. Could you provide more context? Was it used in a specific sentence or situation?
* Regional slang: It might be a regional slang term, perhaps from a specific area or group.
* Made-up word: It's possible the word is a made-up term, perhaps in a fictional story or a specific context.
To help me understand what you mean by "humnocker," please provide more information about where you encountered this word.