Terence is the hulking red bird from Rovio's Angry Birds franchise, a fan favourite since the original 2009 game for his silent, grumbling menace. Angry Birds 2, the 2015 sequel, gave him fresh animations and voice work, and his deep grunts became instantly recognisable to mobile players. Short clips like this one spread through meme edits and gaming videos, where the rumble works as a universal sound of disapproval. Like the ROBLOX oof, it became a shorthand reaction bigger than its game, and it endures because the character's mood is readable in under a second.