The rant comes from Portal 2, Valve's 2011 puzzle game, where Cave Johnson, voiced by J. K. Simmons, leaves recorded messages for test subjects at Aperture Science. In the lemon speech he rejects the old saying about making lemonade and instead calls for engineers to invent a combustible lemon. Clips of the speech circulated on YouTube and soundboards for years before spreading further on TikTok and in gaming edits, where its absurd escalation still makes it a shorthand for refusing to accept a bad situation quietly.