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1.
A Siouxzaphone is a saxophone or any other kind of phone besides a telephone, or cellphone, that is played by a Sioux.

Sioux is the name of a Native American Tribe.
What does a jazz playin' Sioux play?
A Siouxzaphone.

Also spelled as Siouxaphone, Souxaphone, or S(i)oux(z)(i,a)phone
by Squiddily Squix May 12, 2010