In Spanish slang, 'mateo' is used in some countries to refer to a person who studies a lot or is very dedicated to their schoolwork. It's similar to the English term 'nerd' or 'bookworm'.
Examples
- Spanish: Mi hermano es un mateo, siempre está estudiando para sus exámenes.
- English: My brother is a 'mateo', he is always studying for his exams.