Dude is a term that’s still in use to this day. Defined as “a man excessively concerned with his clothes, grooming, and manners,” the interesting thing about this word is that it has multiple cultural inferences, depending on how you say it. If you say it to someone in a short, clipped fashion—you’re mad. If you drag the word out breathlessly, you’re amazed. If you use it like they did in Fast Times, you’re stoned. Aerosmith also scored a big 1980s hit with dude in the title.