The 'When the Doom Music Kicks In' meme refers to the intense, heavy-metal industrial soundtrack composed by Mick Gordon for the 2016 and 2020 Doom video game reboots. The meme highlights the dramatic shift in atmosphere and energy when the music—specifically tracks like 'BFG Division' or 'The Only Thing They Fear Is You'—starts playing, signifying the transition from quiet exploration to relentless combat. It often features clips of people, animals, or fictional characters suddenly becoming hyper-aggressive or performing mundane tasks with extreme violence and speed. Since gaining popularity on TikTok and YouTube, it has become the universal shorthand for any situation where a surge of adrenaline makes you feel completely unstoppable.