* A misspelling: It might be a misspelling of a similar word like "gosses" which means "kids" or "brats" in informal French.
* A regional term: It could be a regional or dialectal term, meaning something specific to a particular area of France.
* A slang term: It might be a slang term with a specific meaning within a particular group or community.
To get a more accurate answer, you need more context:
* Where did you encounter this word?
* What was the context of the word?
Please provide more information to help determine the meaning of "gosse."