z-listerhttp://www.oed.com/dictionary/z-lister_n%3Ftab%3Dmeaning_and_useZ-lister, n.
First published 2002

Z-listernoun

colloquial and disparaging (originally U.S.).
  1. 1999–
    A person on a (notional) Z-list.
    Stressed as ˈZ-lister.
    1. 1999
      The Z-listers desperate enough to take part in Night Fever's Abba Special earlier on Channel 5.
      Sunday Mirror 10 October (Features section) 55/1

Originally published as part of the entry for Z-list, n. & adj.

Z-lister, n. was first published in 2002.