As a Noun:
1. A situation which involves many people having sex with the same person. Idiomatic English = gang bang.
As a Verb or Adjective:
1. To have sex with many different people over a period of time. This sign is used to show disapproval. English = (be) promiscuous.
2. To be had sexually by many people. Idiomatic English = (be) the town bike.