Thread:NotShemp/@comment-25528352-20150905142602/@comment-25528352-20150905144036

JoPo wrote: JG even said during SDCC 2015, that Mordecai and Rigby are still 23.

Er... SDCC 2015 took place several months before this episode...

This actually proves my point. If JG says Mordo and Rigs were still 23 as of SDCC 2015, then the birthday episode makes Mordecai canonically 24