Like fashion, slang changes with the times. A word that seems current one year can feel wildly dated as time goes on. (Just think of how weird it would be to say something is "da bomb" in 2017.) With the help of the Oxford English Dictionary and a few other archival resources, we've rounded up the slang words that defined every year. Though some words really reflect their time period, you might be surprised by how old some of our go-to slang actually is.