Do you realise that bufapopo doesn’t get a single google hit? Its outrageous. Badger would be appalled.
[Seems pretty clear that youre not going to get it, so I'll have to tell you. Read on...]
[Yes, the answer is "bearing an unsympathetic facial aspect in the presence of a police officer"; catch-all crime used by Chief Constable Badger Courage of If... fame. I'm ashamed of you all -W]