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1 definition by Andy Baraniak

A variation of the bitch slap, when someone is acting up, you slap them with each of your hands and feet, also known as the hard 21 in the case of the man with 6 fingers on his right hand from The Princess Bride.
Keith was acting the fool, so I hit him with the hard twenty and set him straight.
by Andy Baraniak December 07, 2006