A person who must stroke their own.. 'ego' because of how they treat woman.. Or alternatively, those of the opposite gender they identify with and or they falsely believe they are better than.
A dude who refuses to give women soothing rub-downs and/or insists on receiving said "luxury of da hands" treatments only from fellow males.
Being allowed to administer an all-over body-rub to a lady --- and being given one in return from her --- is basically da ultimate pleasure to da vast majority of guys... massagynists don't know what they're missing!