Shoryuken is one of the signature move calls from Capcom's Street Fighter series, most closely associated with Ryu and Ken. The word became famous through arcade and console fighting games and later spread into meme culture through combo videos, parody edits and reaction clips. It still gets used because even non-players recognize it as the sound of a dramatic rising hit, much like Boom! Headshot! became shorthand for a perfectly timed strike.