bubble under the lino
n.— «Senator CROSSIN—Perhaps you had better let A-G’s know. That might be just a dent in the whole-of-government strategy that is not quite working this week. Mr Vaughan—It might be a bubble under the lino.» —“Estimates” by Senate Community Affairs Legislation Committee Official Committee Hansard (Canberra, Australia) Feb. 15, 2006. (source: Double-Tongued Dictionary)