South Dakota term for "a very swollen, tight vagina" usually seen in North Korean during winter; other rapping-jacks can refer to the little outfits you can purchase to cover you rapping-jack(et) problem. Much money has been made from rapping-jack jackets; the vagina or "pussy" nevertheless stays very tight and swollen.
"Whoa DUDE, it tried to put my totem pole into her rapping-jack and that chick screamed something chinese at me...said later I had creamed on her rapping-jack jacket"
by Princess Peussie April 09, 2005
The Urban Dictionary Mug
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