A student who does nothing but study — the overachieving academic who prioritizes grades above all else. In Argentina and Chile, mateo isn't always a compliment; it carries the implication of social isolation and an unbalanced life.

Intense, extreme, or over-the-top — can be positive or negative depending on context. In Chile, brígido describes anything that hits hard: a flavor, a person's attitude, a wild situation. If something is brígido, it's not going unnoticed.

To have a gut feeling or hunch about something. In Chile, 'me tinca' means something feels right or off to you intuitively — it's the instinct before the reasoning, the vibe you trust even when you can't explain why.

A person with a big belly or a chubby physique. In Chile and Argentina, guatón comes from 'guata' (belly) and is often used affectionately as a nickname rather than a harsh insult — though tone always matters.