Dildoy
a dildo that is attached to a large air filled ball that you sit and bounce on in order to gain pleasure (much like the bouncy balls with the handles on it that you used to play on when you were a kid). also known as a bounce-and-squirt, chingachong, and a dirtyrider.
Hey zak, i think im gonna buy my girl a dildoy for christmas. I heard their making them with another attachment so you can ride two at once! :D