AIBU to think a BBC journalist should know what this means?

[MentalImageYouDontNeed]

Is it me?

Well this isn't an expression you expect to see on the BBC News app on a Friday morning And surely something you don't ever want to see in an article including Boris Johnson <bleaches brain>

Sorry about that

It’s mildly amusing but not worth screen-shotting it and marking it up with a red pen.

If they had said ‘rub one out’ that would have been a bit more amusing.