Mcvib Share definition Flag Mcvib is the name of a crazy sex toy. It is a vibrator which gives you the chills and is the boss of all toys. "Wow last night was amazing!""Were you with Toby again?"Nope! It was my new Mcvib it's incredible!" Mcvib by Bodysnatchers 123 January 26, 2012 0 0 Get merch Get the Mcvib mug. Buy Now — $32.95 See more merch