This sound comes from Undertale, the 2015 indie RPG that spawned a huge library of quoted dialogue online. Short voice and text moments from the game spread through meme videos, fan edits, and reaction compilations because they are easy to recognize even in very short clips. “That’s a wonderful idea” stuck around as a useful sarcastic response sound, especially in gaming posts where a player is about to do something reckless, clueless, or wildly overconfident.
About this sound
A short Undertale dialogue clip saying “that’s a wonderful idea,” used in edits and memes for fake approval, sarcastic reactions, or a suspiciously bad plan.
This sound is a brief voice clip from Undertale built around the line “that’s a wonderful idea.” It has a calm, approving delivery, but in context it often feels a little off, which gives it that perfect ironic edge. The result is a reaction sound that can play as sincere praise or obvious sarcasm depending on the edit. Creators use it when someone suggests a terrible plan, makes a risky move, or accidentally says something that sounds much smarter than it really is.
