桑間濮上 [－间－－]

Jyutping song1 gaan1 buk6 soeng6
Pinyin sāng jiān pú shàng

Definitions (CC-CEDICT)
  1. Sangjian by the Pu River, a place in the ancient state of Wei known for wanton behavior
  2. lovers' rendezvous
Definitions (Wiktionary)
  1. phrase, idiomatic
    lovers' rendezvous