nzangó,
pl. banzango (class 9/10 (2) : - / - (ba-) : plural invariable from context (or informal/modern ba-))
a game where you have to guess the leg or arm to be launched by the other
similar to rock-paper-scissors but a bit different, with the feet :
You clap your hands and launch a foot forward.
The other person has to guess which one and do the same.
The person who looses has to make place for an opponent.
Often the points are counted with elastic bands around the arm and the
one who looses gives one to the other who puts it around his arm.