arrechar

A vulgar, strongly dialectal verb whose meaning varies sharply by country: in Venezuela, Colombia, and other parts of the Caribbean it means to become sexually aroused; in Central American countries like Costa Rica, Honduras, and El Salvador it more often means to get furious or pissed off. Coarse register in either case.

• (Venezuela, vulgar) Esa canción lo arrechó de una vez. — (Venezuela, vulgar) That song turned him on right away.
• (Costa Rica, vulgar) Se arrechó cuando le cancelaron el vuelo. — (Costa Rica, vulgar) He got furious when they cancelled his flight.
• Es una palabra que hay que usar con mucho cuidado según el país. — It's a word that needs to be used very carefully depending on the country.

Using arrechar/arrecho assuming one meaning applies everywhere — the same word means "aroused" in some countries and "furious" in others, and it's vulgar in both, so misusing it can be embarrassing or offensive depending on the audience.