What Spanish idioms do people actually use?

Common everyday Spanish idioms include estar en las nubes (to be daydreaming), costar un ojo de la cara (to cost a fortune), tomar el pelo (to pull someone's leg) and ser pan comido (to be a piece of cake). Learn them as whole phrases, because the literal meaning will mislead you.

Idioms you'll actually hear

These are widely understood and show up in everyday talk:

• Estar en las nubes - literally "to be in the clouds." Perdona, estaba en las nubes (Sorry, I was daydreaming).
• Costar un ojo de la cara - "to cost an eye of the face." Ese coche cuesta un ojo de la cara (That car costs a fortune).
• Tomar el pelo - "to take the hair." ¿Me estás tomando el pelo? (Are you kidding me?)
• Ser pan comido - "to be eaten bread." El examen fue pan comido (The exam was a piece of cake).
• Meter la pata - "to put in the paw." Metí la pata con ese comentario (I put my foot in it with that comment).
• Estar hecho polvo - "to be made of dust." Después del viaje estoy hecho polvo (After the trip I'm wiped out).
• Dar la lata - "to give the can." Mi hermano me da la lata todo el día (My brother pesters me all day).

Why they don't translate

An idiom is a phrase whose meaning isn't the sum of its words. If you translate meter la pata word by word, you end up with something funny and wrong. It's the same as English "kick the bucket" sounding strange to a learner.

The good news is that many Spanish idioms have a clear picture behind them, and pictures are easy to remember. A cost of "an eye of the face" is an image you won't forget.

Some are regional

Idioms vary by country, just like slang. A few examples:

• Estar en las últimas (to be on one's last legs) is widely used.
• Ser un cacho de pan (to be a really kind person) is common in Spain.
• Mexican Spanish has many of its own, like no hay bronca (no problem), and the same goes for most countries.

I'd focus on the shared ones first and learn local ones as you hear them.

Don't confuse them with proverbs

Spanish also has refranes, short sayings like Más vale tarde que nunca (Better late than never) and A caballo regalado no se le mira el diente (Don't look a gift horse in the mouth). They're related, but you'll hear idioms far more in daily speech.

How to learn them without going crazy

1. Learn a few per week, not a hundred. They're easy to forget if you cram.
2. Save the whole phrase and a sentence, not a literal translation.
3. Look for them in shows and stories, where you can see the situation that triggers them. Langtok is my app, so I'm biased, but tapping any word in a short story to check it is a handy way to do this.
4. Use one when it fits. A well-placed meter la pata gets a smile.

One more thing: you don't need idioms to be understood. Simple, correct Spanish gets you there. Idioms are for sounding natural, and for not being confused when a native speaker uses one on you.