Old school : Vieja escuela
Curiosity killed the cat: La curiosidad mató al gato
Like a baby's butt : Como potito guagua
Then there are the things that, though not exact translations, make perfect sense. The literal words used are like hints that help you figure out the translation on your own. For example, walnuts are known as la nuez mariposa; the butterfly nut. A crosswalk is a paso de cebra; zebra passing.
Then you have the para-somethings which means for-well...whatever it's for. You've got your parabrisas for breeze (windshields), your paracaídas for falls (parachutes) and your parachoques for crashes (bumpers). I love these super convenient compound words. My only request is to change the word paraguas (for water) to parallovizna (for drizzle). Sadly it looks like Snoop Dog jokes are one thing that is still lost in translation.

