A meme is an idea, behavior, or style that spreads from person to person within a culture. Memes are often used to communicate social and cultural ideas, and can be found in the form of images, videos, or texts. Some common examples of memes include jokes, catchphrases, and internet trends. Memes can also be used to convey deeper cultural meaning, and can often be used as a way to explore and critique social norms and values.