gabbadagoosh - A big fancy word for saying ‘I’m going to be a total idiot a

A big fancy word for saying ‘I’m going to be a total idiot and not think about anything.’

'Gabbadagoosh! I’m going to fail this test!'

'Gabbadagoosh! I’m not even going to put on pants!'

'Gabbadagoosh! I’m just gonna eat cereal for dinner again!'