Literally, Momo says "You're not a mazoku (demon), but a masochist". But, y'know, there's no particular way that I can think of to play off 'demon' and 'masochist', so I went with what I think is a pretty clever substitute, even if canonically Shamiko is probably not internet-cultured enough to get it.
I Want to Be the Kind of Rivals that Can Do Special PlaySo Shamiko gets turned on when her rival says things like that to her?Monmooo...*Giggle*At this rate you're more of a degen than a demonNot a demonBut a degen...