Speaking of the GPL and joke names, you might say that the GPL (GPLv1 and [I assume] predecessors) was innovative not just for copyleft but also for having jokes in it at all (however puerile, leaving aside the issue of offensiveness). There were antecedents like "Copyleft: All rights reversed" (RMS didn't coin the word "copyleft") but that's not quite the same thing. Interestingly, however, no non-GNU/GPL-derived FOSS license has adopted the use of jokes. Not sure what to make of that.