Blatant Idiot Share definition Flag Someone who is much beyond an average idiot, and has quite simply become so stupid it is ridiculous. A person may be a blatant idiot if they ask stupid questions, or think an apple is an orange. Blatant Idiot by Monkey man3000 June 19, 2009 0 0 Get merch Get the Blatant Idiot mug. Buy Now — $32.95 See more merch