Tewbeefower

n.

An immensely dense person. A dope.

In use

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.'

Let Lawrence Muck translate it to posh English for you
Lawrence Muck

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.'