Couchsurfing refers to the practice of moving from one friend's house to another, sleeping in whatever spare space is available, floor or couch, generally staying a few days before moving on to the next house.

“沙发冲浪”指的是不断地从一个朋友的家搬到另一个朋友的家，利用朋友家地板或沙发之类的空闲位置过夜，通常待上几天就换地方。

The couchsurfing website was launched in the United States in 2004. It now has over six million members from more than 100,000 cities. The website provides a platform for members to "surf" on couches by staying as a guest at a host's home, host travelers, or join an event. Most of its registered members are aged 20 to 30. In China, the culture of couchsurfing is growing as more young people seek adventure on a shoestring.

沙发冲浪网站于2004年在美国建立，现在已经拥有来自10万多个城市的超600万名会员。该网站为会员提供到陌生人家沙发冲浪、让旅游者在自家沙发冲浪或参加聚会活动的平台。大多数注册会员年龄在20岁到30岁之间。在中国，沙发冲浪文化正在蓬勃发展，越来越多年轻人热衷于穷游和冒险。