Memes are cultural artifacts, comprising an image overlaid with text which is reworked and shared online, with specific common characteristics: they are intertextual, they include a visual element, and they serve a social role and in some instances may 'serve as critiques of the dominant hegemonic culture.
Is an idea, behavior, or style that spreads by means of imitation from person to person within a culture and often carries symbolic meaning representing a particular phenomenon or theme.