A phrase which was coined by a well known Belfast shoplifter on a train to Bangor. He called his wife, who was carrying nine aged plastic bags each containing a single sheet of paper, a "Clownhead Ballroot". Presumably the term Clownhead refers to someone who's head resembles that of a clown. Given the womans deshevled appearence, gaunt features and howling, it appears to have been an accurate description.
Look at the fucking hack of you with them plastic bags, you're fucking mad you clownhead ballroot.