* A misspelling: Perhaps it's a typo for a similar word or acronym.
* An abbreviation specific to a niche group: It could be used within a particular field, company, or community.
* An informal term: It might be a slang term used in a specific region or social group.
To understand the meaning of "GOMAB", please provide more context. For example:
* Where did you encounter this term?
* What was the topic or situation?
* Were there any other clues or surrounding words?
With more information, I can help you figure out the meaning.