Urban Dictionary is an online platform that allows users to define slang words and phrases. It was created in 1999 by Aaron Peckham and has since become a popular resource for understanding contemporary language, especially among younger generations. The definitions are contributed by users, making it a dynamic and ever-evolving dictionary. The site features a wide range of entries, from common slang to niche terms, often accompanied by examples of usage. While it provides insight into modern language, the definitions can vary in accuracy and tone, reflecting the diverse perspectives of its contributors.