babbity scrowl
A loud, nonsense sound people make when they’re too tired to think. It’s like a confused chicken in a microwave.
He screamed 'babbity scrowl' and fell asleep on the couch.
She said 'babbity scrowl' and refused to talk to anyone.
When the teacher asked a question, he said 'babbity scrowl' and hid under his desk.