I'm more a fan of "that one fused 7 and 6 memebered ring diazacycle that has that guanidine sorta thing going on that people use as a strong base when their molecule is too much of a coward to handle a real base, shit, the fuck is it called... a oops it's not guanidine, the fuck is the nitrogen version of an ester called, yeah that", personally.

So it's named after a town called Cumington, which in turn is named after a man call John Cuming