couchsurfingnoun [ U ]
uk/ˈkaʊtʃ ˌsɜː.fɪŋ//ˈkaʊtʃ ˌsɝː.fɪŋ/the practice of travelling around and staying with people you do not know, who advertise their homes on the internet:
Couch surfing is a great way to encourage connections across national borders.
staying with a series of different friends or relatives, sleeping, for example, on their sofa, because you do not have your own home
Synonym
sofa-surfing