See also: hirni
- (colloquial, usually humorous) an idiot, someone who isn't quite right in the head (rarely employed as an insult, mostly a mild word for someone who has forgotten or misunderstood something)
- Nein, da fahren wir auf dem Rückweg vorbei, du Hirni! Sonst müssten wir ja dreimal hin- und herfahren...
- No, we'll drive by there on our way back, you dummy! Otherwise we'd have to drive back and forth three times...