my 5 year old DS with asd tonight asked DP to stop whistling as he has whistle-ism, we asked what he meant and he said he has aut-ism (that's the way he pronounces it) which means he doesnt like loud noises, but also has singing-ism as he doesn't like us singing and whistle-ism because he doesn't like the noise of someone whistling.
I thought it was interesting to hear his perspective of being on the spectrum :o