Testicle. This word spawns dozens of expressions: 'tener huevos' (to be brave), 'huevón' (lazy or dumb), 'a huevo' (hell yeah/mandatory). It's the foundation of vulgar Spanish vocabulary.

A hidden stash spot for something valuable or secret. In Chile it also means 'a lot' — so 'caleta de plata' could be hidden money or tons of money, depending on the country.

Stolen, taken without permission. In Chile, when something is 'choreado' it means it was swiped — from a phone to a car.

Experience or skill gained through practice — that wisdom that only comes from years of doing something. In Argentina, 'tener cancha' means being a veteran at something.