Flaming Idiot Share definition Flag A person so idiotic that when you see them, they appear to be consumed by the sheer amount of tangible stupidity flaring from them. John Doe is a flaming idiot. Flaming Idiot by AlexM8 May 29, 2011 0 0 Get merch Get the Flaming Idiot mug. Buy Now — $32.95 See more merch