This sound is associated with Super Saiyan Goku from the Dragon Ball anime franchise and circulates online as a short reaction quote. Short Goku voice clips have stayed popular in meme edits, versus videos, and power-up compilations because they instantly suggest confidence and retaliation. This one keeps getting reused for moments where a creator wants to imply that someone has crossed the line and the response is about to be decisive. Its staying power comes from Dragon Ball's huge online fanbase and the recognisable delivery.