A word used to define a buddy, pal or friend. Said at the end of a sentence, usually said with stress on the "der". Most commonly used in private prep schools.
A word used by a group of people who think they have started a fad, but have completely overestimated the popularity of its use and really just annoy the crap out of everyone.
The phrase you use in a Spanish class in America to let the teacher know you are going to use the restroom. Instead of asking “puedo ir al bano?” simply tell the teacher, “I’m going to poder the bano”