"i have no idea" in German I have no idea. Ich habe keine Ahnung. Mir fällt nichts ein. Detailed translations for "i have no idea" I have no idea. I have no idea. Ich habe keine Ahnung. What do you think he was doing there? I have no idea. Source: opensubtitles.org Corpus by OPUS Request review Ich habe keine Ahnung. I have no idea. But Cade would know the answer. Source: opensubtitles.org Corpus by OPUS Request review Ich habe keine Ahnung. I have no idea. Mir fällt nichts ein.