While recieving a blow job or masturbating, right when you reach the point of ejaculation you spin around in a circle while realeasing sperm and making a sprinkler sound effect. Looks like a sprinkler you would find in the front yard. It's better with a girl because it will bring her back to the child hood days when she ran through the sprinklers
Note: You must save up enough sperm to make a complete circle, may be a little challenging, but if you can do it, your the man.
After she finished blowing me, I washed her down with the sprinkler.