The Sarcasm Detector is a machine that detects sarcasm.
Professor Frink uses it at a city meeting to measure Comic Book Guy's statement "Oh, yeah, everyone's real happy then.", causing Lindsey Naegle to ask if she detect a note of sarcasm. While reviewing the machine's readings of CBG's statement, Frink exclaims, "Are you kidding me? This baby is off the charts!". Comic Book Guy, sarcastically, says, "Oh, a sarcasm detector. Oh, that's a real useful invention." which causes it to overload with sarcastic data and explode.