adjective
not intended seriously; done or said as a joke :
a tongue-in-cheek remark
► ˌtongue-in-ˈcheek adverb :
The offer was made almost tongue-in-cheek.
adjective
not intended seriously; done or said as a joke :
a tongue-in-cheek remark
► ˌtongue-in-ˈcheek adverb :
The offer was made almost tongue-in-cheek.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005