Tewbeefower
Featured in The Déise Dictionary
An immensely dense person. A dope.
Yer man is some tewbeefower boy, when de judge asked him what gear he was in when he crashed his cayer he said 'an Azzurri tracksuit.'

Hello, you marvellous creature. Would you like me to translate 'Tewbeefower' in use for you?
That fellow is a perfect dimwit, old boy. When the judge asked what gear he was in when he crashed his motor car, he replied, 'an Azzurri tracksuit.'
Any good?