Phineas and Ferb is Disney's long-running animated series from creators Dan Povenmire and Jeff 'Swampy' Marsh, following two inventive stepbrothers and the schemes of Dr. Doofenshmirtz, whose contraptions very often end with a self-destruct button. The self-destruct countdown is one of animation's oldest running gags, and short clips of it circulate widely as a fail sound effect on soundboards and in meme edits. Editors love it because the rising alarm instantly signals comic disaster, keeping the joke readable even in a four-second video.