As decided by the founder members of HHJJ club, steep killing is to dance so immensely and violently to the level of hurting people around; Such as stepping on someone's foot or dropping down somebody.
-"Hey dude, chill down. You've steep-killed me!"
-"Oh god I'm so excited, this calls for some serious-a** steep-killin'!"
-Approved by Jackie, Gigi, TheDon, and UzF