japanese oil change
when during a gang bang a bunch of guys cum all over a girl and in a cup then remove the cum off of the girl proceed to put the cum that was on the girl into the cup, then place a funnel into her pussy and finally pour the cum down the funnel
On his trip to Tokyo john and bill went to an orgy and gave a chick a japanese oil change
Japanese Oil Change
Putting a funnel into someone's butthole and then diarrhea into the funnel, filling their ass with your diarrhea.
The Japanese are into some really weird stuff, ever seen a Japanese oil change?