I spent some time trying to figure that one out but in vain. Perhaps somebody who did that quiz will let us know. I kept thinking Porridge ?-anagram of dirge +.
Thanks quinie. I had thought of a few ideas based around 'honey' but hadn't thought of dirge. The POR could be part of the word 'poor'. I suppose it doesn't have to be food item - it could be something like porridge bowls or spoon. All I can think of for inefficient locking system is some reference to keys ( 'porkies -poor keys- wouldn't fit)