iidu Share definition Flag iidu or iida is someone that can't speak normally a language because he/she got hit in the head while being a little child. A: Y ääääätê jâmvurjer gêstërdây B: Why does he/she talk like that? C: Oh, that is because she is an iidu iidu by Remen3244 October 11, 2020 Get the iidu mug.