incandescent-idiot Share definition Flag A person who is easily spotted as foolish by making an easily escapable mistake. The students referred to Tom as being an incandescent-idiot after stating that 1+1 equals "Zebra" incandescent-idiot by Buster1 September 8, 2005 0 0 Get merch Get the incandescent-idiot mug. Buy Now — $32.95 See more merch