>>13,14Wrong asshole
! It's a reference to an art work which, while being incredibly boring and meaningless, follows the 'inside joke as boring art' tradition of that guy who put a urinal in an art gallery.
>>13's revolutionary method of referencing a piece of boring art that references another piece of boring art that was an inside joke as an inside joke instead of attempting to produce something interesting is an astounding leap forward. Not just for incredibly boring art, but also for terribly boring books about the sociology of language.