Basically it means that something is complete nonsense.
its completely and utterly rubbish and doesn't work it is only for the movies
Purely/utterly
mean
It means rubbish
rubbish
Asinine: extremely or utterly foolish
First of all, udderly is not a word. UTTERLY mean that your certain.
US if rubbish is suppose to mean waste or trash.
to the utmost; as far as you can go; absolutely; entirely; completely
It means eliminated, utterly destroyed.
"Utterly just" means fair or righteous in the strictest sense, leaving no room for doubt or ambiguity. It implies a complete and absolute adherence to principles of justice and fairness without compromise.
It means ridiculous or, if your English, rubbish.