A Blowjob in which the girl is backed upagainst a wall so she is unable to move backwards, creating more pleasure for the guy, and making deep throat easier to accomplish.
Bill- "Dude that Wall Blowjob is a great idea. That was the best BJAmanda has ever given!"
Large, beautiful breasts that are keep well consealed and initially appear to be much smaller and less impressive than they actually are until unleashed.