When a character manages to unintentionally blow only themselves up with the explosives that they are carrying. The character can either be mishandling unstable explosives, or they can be a failed suicide bomber. No matter the case, the explosion is usually caused by their own stupidity, making this a case of Too Dumb to Live. It is a good way to show the audience that the character is REALLY DEAD, because the person unfortunate enough to have this happen to them always dies instantly. One possible outcome of Nitro Express. See also Dynamite Candle and Mismeasurement.