(pl. n.) People who just won't go.
(As defined by Douglas Adams' The Deeper Meaning of Liff.)
Foxton Rich-Cashbucks: You clutz, servant, I requested a Long Island Twisterini from you nigh on an hour ago!
Farnaby-Chalmers: I do apologise, sir, I was held up by one boffo of a clune in the foyer. Those clunes get me every time, sir...
Foxton Rich-Cashbucks: And that, my dear waiter, is why you earn merely thruppence an hour, now be on your way.