Following a spate of reports of 'last taboos' over the past half a century, sociologists have definitively identified "the truly last taboo, ever, ever, ever, cross my heart and hope to die".
Social scientists from Weston-super-Mare Poly claim that the last, unspoken social prohibition is actually on confessing that social prohibitions exist.
"In the past, we have had many sightings of 'the last taboo'. Sightings have usually been reported in the Guardian or the Observer and have tended to be concentrated in strongly middle class liberal areas" explained Dr Jim Godstone, Head of Pointless Research at WSMP.
"It has taken years of research to get to the point where we have finally got to the Last Taboo after many false dawns of it being masturbation, female circumcision and heterosexual penchants for Cliff Richard. The truth is that actually admitting you have taboos is taboo, so there cannot be any more taboos identified, otherwise they would not be taboos".
WSMP's Computer Research Department, also known as Colin Howden, is now seeking taxpayer fundoing to try and help break the logic loop caused by this latest discovery.
A spokesman for Sade, a popular entertainer much beloved by midle class liberals, upon hearing hearing the news of the identification of the last taboo said "Sweet."