When you stick a bag up a girls vaginal region. Filling the bag with cum/poop/or anything else you can find. Afterwards when the bag is full you stick a pvc pipe down the bag, snugly tight. Then you blow into the pvc causing the bag to explode in her vagina.
Tina: Josh my vagina is all ripped up from the "Chinese bagpipe" you gave me a few nights ago.
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