When a male ejaculates in another's (male or female) butthole. Then the recipent of the ejaculate will shake the sperm in his/her butthole for exactly 39 seconds. The recipent will then shoot out the sperm onto the toe of a baby. It is best when the baby is under 6 months.

Optional: You may then cook the baby.
Hey dude! I just got the best Magic Fountain Ride from Nick the other night! O and that baby was delicous.
by Matt Harry March 30, 2008
Get the Magic Fountain Ride mug.