Usually stands for Married White Male in that context .
i was thinking mwm_massage.. usually means "i am a married white male looking for massages* from a dude" least in the back of select weekly periodicals is what mwm_massage means.
so.. OP might not want tips/pointer for helping his ladyfriend up her game.. he might be all "man, i wish some dude would suggest trying out a dude. then we could PM. exchange pics. maybe cam. maybe meet up"
not saying is.. saying could be. ya know?
*oral penis massage :wink: