Regular Show was a Cartoon Network animated comedy about two slacker park workers whose everyday jobs kept spiralling into surreal adventures, and its loud, expressive voice work made it a natural source for reaction sounds. The repeated coffee chant caught on because it is instantly recognisable even out of context, easy to drop into short videos, and perfectly matched to jokes about tiredness, deadlines and caffeine. On soundboards and in meme edits it has stayed in rotation as a quick shorthand for being over-caffeinated, overworked or simply unable to function before that first cup.