(Courtesy of Mike Eder, TYA gifmaster)
... but via his postgame comments last night, Hughes himself is referring to it as a slider/cutter combo, bringing back together the pitch he abandoned earlier this year and the pitch that he abandoned far longer ago when he was still in the Minors. The pitch certainly appears to slide more than cut, but if Phil is saying it's both then who am I to argue? Plus, if it slides and it cuts then there's already a perfect name for it.
Thank you, thank you. I'll be here all week.