http://www.psychforums.com/antisocial-personality/topic104030-130.html Do a Ctrl+F for "pizza" and you'll see a poster makes a reference to discovering child porn on 4chan under the code word "cheese pizza"

http://defigure.deviantart.com/journal/MAPS-Pedophiles-625547706 I'm not sure if the podesta "map" email was released on wikileaks before August 13, but this is a possible connection

Kernel Magazine 2013 - Gives a list of additional pedophilic acronyms as well http://kernelmag.dailydot.com/features/report/7582/revealed-the-secret-symbols-used-by-child-sex-offenders/ Twitter reference to above link (for date-checking purposes) https://twitter.com/KernelMag/status/412619433971318784?lang=en

Related article with more links http://bewytchme.com/paedophile-holiday-alice-day/