Socrates, it was called “Buck Buck”. When all the jumpers were on the stoopers backs one of the jumpers would yell “Buck Buck how many horns are up” and hold up 1, 2 or 3 fingers. One of the stoopers would have to guess the number. If the stooper was correct the teams would reverse roles. If he was wrong or the stoopres caved in under the weight of the jumpers the jumpers would get to go again. If any of the jumpers fell off the stoopers before the number was called the jumpers would lose and have to change positions as well.The guy against the wall (the pillow) would verify the number to prevent cheating. We played this in the Sunset Park area of Brooklyn during the late 50’s early 60’s.