Gahhhh
A loud, angry noise you make when someone does something so dumb it makes you want to scream and cry at the same time.
GahhHHH! You just told your teacher the sky is green and then cried about it!
GahhHHH! You ate the last pizza slice and then cried about it.
GahhHHH! You just texted me a photo of your cat wearing a sock and called it a fashion statement.