Place it as the final beat after a fail replay, not under gameplay commentary. Follow a shocked sound for the mistake itself, then let this taunt close the moment before cutting to the scoreboard or the next round starting.
About this sound
A very short clip of a young girl's voice delivering the two-word taunt get good in a blunt, sing-song way. At under a second it lands instantly, giving a cheeky, smug and teasing feeling that makes a loss sting a little more while keeping the joke light and playful for everyone watching.