A word that can be added anywhere in a statement when you just feel like freaking out or are in a really hypermood. It has no purpose, it is just an uncontrollable interuption in one's speech.
What are you doing?
What are you doin?! What are you-HUSSSHH! What ar-HUT! HUSSSHH!! Wha-HUT! HUSSSHH!! HUSSSHHH!!!!