What is a raun raun (pamuk) meri/man?
Ah! I think you are asking about a Two Kina Meri. A K2 meri can also be referred to as a pamuk / bahmuk / bamuk or prostitute. Another similar term is "haiwei meri" who are very likely prostitutes.
http://coombs.anu.edu.au/SpecialProj/PNG/MIHALIC/M2/LetterP/pamuk.htm