"Nevermore!" (quoth the Raven)

"Rien." (The King's comment in his diary, 14 July 1789)

And characteristic exclamations: "Inconceivable!" (the Sicilian, The Princess Bride), "Sapristi!" (Moriarty, The Goon Show), "D'oh!" (Homer Simpson), "Caramba!" (Gomez Addams), probably could be extended endlessly.