The 'Hashtag' meme is most famously associated with a recurring comedy sketch by Jimmy Fallon and Justin Timberlake on Late Night with Jimmy Fallon. In the sketch, the duo engages in a spoken conversation while physically making hashtag hand gestures for every buzzword used, satirizing the excessive use of hashtags on platforms like Twitter and Instagram. The meme captures the absurdity of social media culture where people 'speak' in tags to appear relevant or ironic. It is widely used to poke fun at influencers, over-sharers, or anyone who takes internet trends a bit too seriously.