1) Bart Simpson hears it a lot 2) Cartoon cringe catchphrase 3) Cartoon cry 4) Cartoon exclamation 5) Classic catchphrase 6) Comment from Homer Simpson 7) Contemporary lament 8) Cry accompanying a head slap 9) Cry from homer 10) Cry from homer simpson 11) Cry made with a head slap 12) Cry made with a head-slap Found on https://www.crosswordclues.com/clue/doh
(from the article `Finno-Ugric religion`) ...A water bird may be older than the Devil; it also occurs, however, without the dualistic emphasis. Thus, in an account by the Yenisey Khanty, the ... Found on http://www.britannica.com/eb/a-z/d/62