up the Oxo Tower

In reference to the Oxo Tower, a building on the River Thames in London, formerly owned by the makers of Oxo stock cubes (whose brown colour is likened in this phrase to that of excrement).

up the Oxo Tower

1. (UK, slang, humorous) Of sexual intercourse: anally.
   • 2012, joeh, “Re: Royal Family is all stuffy and dull”, in uk.politics.misc (Usenet):

     > > You and your wimmin have been missing out.
     >
     > more an (female) arse man myself
     
     Have you been up the Oxo Tower?

   • 2013 February 8, Caitlin Moran, “The Shard”, in The Times:

     Until recently, London has had only one building that works by way of a euphemism for bumming. Yes — the Oxo Tower on the South Bank has been the sole venue to allow people to post Facebook update statuses such as: 'First date with Grace last night. I took her up the Oxo Tower.'

• Oxo cube