Usually you will be intoxicated before going into s.d.m., however sometimes you can go into s.d.m. while not under the influence. SDM usually happens when you are in a club or party and it is near the end and u have been turned down by all the decent girls... at this point you will go into SDM and go after anything with a punani, some girl you would never imagine picking up in your right mind.
Dave: Yo what the hell were you thinking last night with that girl u picked up?
Dan: I donno man i think i went into S.D.M. tho.
Dave: Yeah no shit u went into S.D.M.
Dan: Yo why the hell did u bring me to this dutty hoe jam?
Dave: I donno man but ive been in S.D.M. since i got here.