Lethal Sexy Dancing.
As defined by the HHJJ club founder members, LSD is usually accompanied by Steep-killing; to dance so violently so as to hurting surrounding people.
LSD is usually conducted with disco lights effects.
-"Hey baby, are you in the mood for some LSD?"
-"We had an LSD after my birthday party, that was so cool!"
-Approved by Jackie, Gigi, TheDon, and UzF