The sexual act of simultaneously fisting two females, typically alternating between each female, with piston-like precision.
I got these two freaky ass bitches, wantin' the Rockem Sockem Robot all night long!

Yo my forearms be all like Popeye and shit, been pulling the Rockem Sockem Robot on my girl and her friend.
by The Fell Hand January 31, 2012
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