New York Slang 2025. This way you can sound like a real local. But my favorite new slang word is “based” — short for “based in fact” or “based in reality” and often used as a term of assent when someone states a controversial opinion.

Every year we get a bunch of new slang words that capture the spirit of the times. This new york slang word means to stare at someone for a long period of time in an unrelenting way or to ask someone questions.