Genn Greymane is the king of Gilneas and a worgen leader from Blizzard's Warcraft universe, later brought into Heroes of the Storm as a playable hero who can shift between human and worgen form. His quote set in that game is built around barely contained fury, and this line became shared outside matches as a short rage sound. Clips and soundboards spread the quote because the wording is clear even without context, so gamers who have never played Greymane still use it to announce anger, a transformation or an all in attack.