What does the spanish word meteselo mean?

The word "meteselo" in Spanish is not a standard word and does not have a recognized dictionary definition. It's likely a slang term or an expression used in a specific region or social group.

Possible interpretations:

* "Meteselo" could be a vulgar slang term related to sexual activity. It's important to note that this is just a possible interpretation, and the exact meaning would depend on the context.

* It could also be a misheard or misspelled word. It's possible that the word you heard or saw was actually something else, and "meteselo" was just a phonetic approximation.

Without more context, it's impossible to determine the exact meaning of "meteselo." If you provide the sentence or conversation where you encountered this word, I might be able to give you a more specific answer.