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1.
step down- get back, or back off, get out of my face!
yo step down ryte now!
by jules-creater of this phrase December 16, 2004
 
2.
Verb: To BackHand a friend/co-worker/stranger in the chest, while screaming 'Step Down'. A form of humiliation.
*backhands your chest*
"STEP DOWN!"
by Mr.Eggels February 28, 2006