This term is no longer used as commonly as it once was (largely because it is considered racist and insulting by some islanders when used by Argentines). Instead most prefer "Falkland Islanders" or even "Bennies".
^Second Class Citizens, The Argentine View of the Falkland Islanders, Falkland Islands Association Newsletter, No.53, November 1992, p10-11 "The idea of Falkland Islanders as second class citizens is now firmly established in Argentina. They are imagined as ignorant elderly serfs of the Falkland Islands Company. The word Kelper is now part of Argentine Spanish too – as a term of contempt."